Hold on, is all this arguing about being "punished" when a customer returns a game, or resells it? Returning a game that has already been used doesn't sound right (for any product), but reselling it is an entirely different matter. Either way, it seems people have gotten off the real topic here.
If I decided I no longer wanted SSBB, and ended up reselling it, I'm not "punishing" Nintendo. I already paid for the game new, they already got my sale! It doesn't matter what my reasoning for parting with my copy is, whether I didn't like it, I got "tricked" into buying it, I got bored of it, or if I just needed extra money. It'd be no different than giving it away to a friend - do people consider this act punishing the developer, too?
To me, it sounds like people think that every time a game is played by a different person (or console?), the developer should be paid. How does that make sense? Why stop there? Why not charge every time the game is played? Instead of movie tickets, we'll have game tickets! It makes sense, with the way some single player games so closely resemble movies. Unfortunately, none of us would ever truly own a game, we'd always just be "borrowing" from the developers...
I don't know about everyone else here, but if I buy a game, I want to be able to do what I want with it. It's the same with music CD's, or DVD's - I should be able to lend it to my friends, keep it in my collection, or resell it if I wish. I couldn't say for sure if I'm in the majority or not, but I will say that if the industry tries to fight used game sales by screwing us over (like some here seem to have suggested), they will see resistance from us.