CollectionPlnr

How to Start a LEGO Collection

By Alexis Pratsides, FounderUpdated

Why LEGO Is One of the Best Collectibles

LEGO has maintained its place as a premier collectible for a simple reason: supply is always finite. When a set retires, LEGO stops making it. Demand from adult fans, parents recreating childhood favourites, and investors who noticed the pattern drives prices on the secondary market far above retail - often 50-200% higher within a few years of retirement. Some iconic sets have multiplied in value by 5-10 times over a decade.

Beyond investment, LEGO collecting is genuinely enjoyable. The build process is meditative, the finished displays are impressive, and the themes span everything from Star Wars and Technic to Architecture, Art, and Botanical Collection pieces that function as home decor.

Understand How LEGO Retirement Works

LEGO sets are produced for a limited window - typically 1-3 years for standard sets, sometimes longer for large Icons or Creator Expert pieces. When a set is retired (End of Life, or EOL), it disappears from official LEGO channels and authorised retailers. After EOL, the only source is the secondary market (eBay, BrickLink, local resellers), where prices invariably rise as remaining stock depletes.

Tracking which sets are nearing retirement is one of the most valuable skills a LEGO collector develops. Sets often sell out rapidly once their EOL date is announced.

Choose Your Theme or Focus

LEGO produces sets across dozens of themes simultaneously. Collecting everything is impractical and expensive. Pick a focus:

  • Star Wars: The most popular adult-collector theme. UCS (Ultimate Collector Series) sets like the Millennium Falcon and AT-AT regularly achieve significant appreciation. Annual retirement pace creates buying urgency.
  • Icons (formerly Creator Expert): Modular Buildings, vintage vehicles, and iconic structures. The modular building series (Bookshop, Boutique Hotel, etc.) has an exceptional secondary market track record.
  • Technic: Engineering-focused sets with working mechanisms. Bugatti Chiron and Liebherr Crane are legendary retirement appreciators.
  • Botanical Collection: Orchids, Wildflower Bouquet, and Bonsai Tree. Quiet appreciation and beautiful display pieces.
  • Architecture: Scaled famous buildings - a focused collection of these looks exceptional on display.
  • Harry Potter, Marvel, Jurassic World: Licensed themes with active fan bases; values depend heavily on character popularity and set exclusivity.

Sealed vs Built: What Are You Collecting?

Collectors generally fall into two camps:

  • Sealed (MISB - Mint in Sealed Box): The set is never opened. Highest secondary market value. Requires significant storage space for large sets. You never experience the build.
  • Built and displayed: You build the set, display it, and potentially rebuild it later. Resale value drops (unless you keep all parts, instructions, and box), but the enjoyment is the point.

Many collectors do both: buy two copies of a set they love - one to build, one to keep sealed.

When to Buy: The Timing Strategy

The best time to buy a LEGO set for investment or collection value is as early as possible after release - before scarcity drives prices up. Common strategies:

  • Buy at or near retail: LEGO's official website, large toy retailers, and stores like Smyths (UK) or Target (US) sell at retail. Use LEGO's VIP programme for points and exclusive early access.
  • Watch for sales: Major retailers run sales on LEGO during holidays and clearance events. Never pay above retail for a current set unless it is already sold out.
  • Monitor retirement dates: BrickEconomy.com and BrickSet.com track set retirement status. Once a set goes on sale (often a signal of imminent retirement), it is your last chance at retail price.
  • Buy multiples of high-potential sets: If you identify a set you believe will appreciate, buying 2-3 copies (1 to build, 1-2 to keep sealed) at retail can be financially rewarding.

Where to Buy LEGO

  • LEGO.com: Official source; full range, VIP points, exclusive sets, and new releases. Sets occasionally go on sale with gifts with purchase.
  • Large retailers: Target, Walmart, Smyths, John Lewis. Price-match policies and occasional exclusive sets. Sign up for alerts.
  • eBay: Best secondary market source. Always check recently sold listings to understand true market price.
  • BrickLink: Marketplace specifically for LEGO - new and used sets, individual parts, and minifigures. Invaluable for completing sets or finding retired sets at competitive prices.

Storing and Displaying Your Collection

Storage is one of the biggest practical challenges for LEGO collectors:

  • Sealed sets: Store in a cool, dry environment away from sunlight (yellowing boxes reduce resale appeal). Climate control matters for long-term storage.
  • Built sets: Display cases protect from dust; IKEA DETOLF and BILLY units with glass doors are collector favourites. Keep built sets away from direct sunlight to prevent plastic yellowing.
  • Parts storage: If you sort pieces (popular for MOC builders), Akro-Mils drawers and Really Useful Boxes are well-regarded systems.
  • Box protection: Sealed-in-box collectors often store boxes inside larger plastic bins to protect from moisture and pests.

Track Your Collection and Values

CollectionPlnr's LEGO tracker lets you log every set you own or want, see retail prices versus current market prices, and track your collection's total value over time. Knowing the approximate current market value of your sealed sets is essential if you plan to sell or insure your collection.

Minifigures as a Sub-Hobby

Minifigures - LEGO's small poseable characters - are collectibles in their own right. The Collectible Minifigures series (CMF) releases themed series of 12-18 blind-bag figures annually. Certain rare figures from early series (Series 1-5) command significant premiums. Many collectors focus solely on minifigures, which take up far less space than sets.

Common Beginner Mistakes

  • Buying above retail for a current set: If the set is still in production, wait for retail availability or a sale.
  • Ignoring box condition: For sealed sets, box damage reduces resale value. Inspect for dents, tears, and water damage.
  • Storing sealed sets in garages or lofts: Temperature and humidity extremes damage boxes and can yellow plastic inside.
  • Overlooking the VIP programme: Free points on LEGO.com purchases add up to meaningful discounts over time.
  • Assuming all sets appreciate: Common sets from large licensed themes sometimes depreciate after retirement, especially if the licence lapses or the theme loses popularity. Research before buying to invest.

Setting a Budget

LEGO sets range from $10 polybags to $900 Millennium Falcons. A realistic starter budget for adult collectors is $50-$150 per month, which covers one or two medium sets from a chosen theme. Focus on the theme you love most, buy at retail, and resist the urge to expand too quickly before you have storage and display space sorted.