It's especially bad if you're involved in housing at all.

For event furnishings, there's no way to re-purchase them either from regular NPCs or even the Calamity Salvager, and there's no Armoire equivalent for furniture. If you want to hold onto those unique furnishings, you'd better have the space for it.

Even non-event furnishing is a pain. If I'm not using a piece but want to hold onto it, I either need to waste a precious storage slot on it, or destroy/NPC it and craft it from scratch the next time I want to use it.