A lot of LEGO enthusiasts use Price Per Piece, or PPP, to value the set(s) they want to purchase. Though we’re not a huge fan of this metric we find ourselves doing the same thing all the time. The value of the set should really be – is the price worth the amount of time, fun, nostalgia, play or display opportunities and does your wallet agree.
The problem with using PPP to value a LEGO set is the consideration of piece type. You may have a set with a great Price Per Piece value, like set 31212 The Milky Way Galaxy with a PPP of $0.06, but the majority of those pieces are small 1×1 tiles and common pieces. You also have to consider special molds, minifigs and intellectual property (IP) licenses. For example, set 75434 Battle of Felucia Separatist MTT has a higher Price Per Piece at $0.16 but it’s Star Wars, comes with a couple minifigs and a bunch of droids, it’s cool and we want it for our collection.