Every now and then you probably accidentally sell a very important item and instantly hate yourself for it, and have to go through some long process of another to be able to get it back. Other times you just can't ever get it back, period. I've had a few other few moments...more than I'd like to mention.
So, what if there was a function where you could buy back any item you've sold, be-it-housing, or some gear with either gold or crowns.
Although most items can just be retrieved again by visiting the Bazaar, or farming a boss, some items (Such as the spiral cup) can't be retrieved again, (at least to my knowledge.) This would help when a player wants back an item they sold.