you're a scumbag if you try and pass a repo off as the real thing and sell it at inflated prices. i've seen it done a bunch with earthbound zero/mother and it really sucks.
with that said, id really like to be able to play kid dracula, sweet home, mr gimmick, cocoron, and crisis force so im not completely opposed to the idea of buying a repo just to be able to play games id otherwise never be able to (my computer is junk, and im not computer savy so emulators are kind of out of the question for me).