Which is even more of a reason to research stuff BEFORE you bring it home. Not coming down hard on you or anything because we've all been there and it takes a lot of control when you see something that's just screaming your name! But when I go into a LFS looking for corals, I usually have a "short list" of corals in my head that I've researched and figured out where I'd put it in my tank if I found one to my liking. And most important... I don't buy anything that's not on that "short list."
I know everyone's different, and that's just my strategy. But you really do have to research stuff before buying unless you want a lot of "learning experiences" that can be costly.