I know some of my friends have done the gachas for boxes to get their menegerie tigers and I have done it too if you find them low enough. Last time I did it i got some very nice itties from the seller for extremely low and I kept them to breed and I imed and offered more for them but they wouldn't take more for it. Also when I was a new breeder I didn't realize you could go into the edit menu and look at contents so for a new breeder i sorta did it cause it was exciting to see what you would get. I have since stopped selling in gachas and buying unless i get really close to my menagerie tiger(trying to collect them in all sizes in the white ones) but there's always different reasons why people buy and why people sell with the gachas.Some people just want to get rid of unwanted boxes i think but the kity gachas really aren't that much fun anymore to me LOL but i do love regular gachas