Is it better to keep the ponies in the boxes? I've taken half of mine out and some are still boxed because I'm just not sure.
It really depends on the generation you’re talking about and the rarity (sorry for the pun ha ha!) of the pony itself! For example, I kept my comic con Derpy and DJ-PON3 in their boxes since they are special edition and they have cool box art, but most of the time I debox the new singles and such. I know for a fact that most MIB G3s and G4s don’t usually go for much more than they would be loose out of the box, but it depends. Basically I would go with the rule that I would debox any “common”, regular release ponies, but maybe keep the special edition ponies (and especially any G1 ponies!) in their boxes, but everyone is different!! They’re your ponies after all! <3