A “sets under $100” list is easy to write and mostly useless, because most of what shows up on those lists isn’t going anywhere. The interesting question isn’t what’s cheap right now, it’s what’s cheap right now and confirmed to be leaving shelves soon. That’s a much shorter, much more useful list.
Everything below is pulled straight from our Retiring Sets Tracker, confirmed by LEGO and Brickset as retiring July 31, 2026, and every one of them is under $100 at MSRP.
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1. Fawkes: Dumbledore’s Phoenix (76448), $22.99
299 pieces, part of the Chamber of Secrets Harry Potter wave. It’s the cheapest set on this list by a wide margin, and it’s confirmed retiring at the end of the month. A small, easy grab if you want a piece of the current Harry Potter lineup before it’s gone.
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2. Ferrari F40 (76934), $26.99
318 pieces, Speed Champions. Licensed car sets in this line move in and out fast, and the F40 in particular carries real name recognition outside the LEGO world, which tends to help resale once a Speed Champions set actually retires.
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3. 2 Fast 2 Furious Nissan Skyline GT-R (R34) (76917), $24.99
319 pieces. Another Speed Champions entry, this one riding the Fast & Furious tie-in and the genuine cult following the R34 Skyline has on its own. Confirmed retiring alongside the F40.
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4. Kingfisher (10331), $49.99
834 pieces, LEGO Icons. Bird-model sets in the Icons line have quietly built a following (the same corner of the catalog that gave us Fawkes above), and Kingfisher is a nicely detailed build for the price.
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5. Executor Super Star Destroyer (75356), $69.99
630 pieces, Star Wars Starship Collection. A recognizable Star Wars ship at a genuinely accessible price point. Starship Collection sets tend to hold interest well after retirement because they’re aimed at display-focused Star Wars collectors, not just kids.
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6. Talking Sorting Hat (76429), $99.99
561 pieces, right at the edge of our $100 cutoff. It’s a novelty piece (an actual electronic talking Sorting Hat prop), which makes it a different kind of buy than the others on this list: less about brick count, more about being a genuinely unique piece of Harry Potter merchandise that happens to be made of LEGO.
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The takeaway
None of these are guaranteed flips. Retiring doesn’t automatically mean valuable, demand still has to be there. But confirmed retirement plus a real license or a genuine niche following (Speed Champions cars, Icons birds, Star Wars ships, Harry Potter novelties) is a much better starting point than “it’s cheap right now.” Check the Retiring Sets Tracker before the end of the month if any of these are on your list.