The retail prices on the new Minecraft sets (The Cave $20 / Crafting Box $50 / The Mine $110 / etc) are pretty closely in line with other branded sets. If you're looking at a marketplace price on an OOS item (e.g. crafting box at $85 right now on Amazon) it's easy to get a bad impression though.

Looking briefly at $50 list Star Wars sets, the piece counts are actually generally lower. Compare the 518 piece minecraft set to the z-95 headhunter @ 373, Umbaran MHC @ 493, & Droid Gunship @ 439.