But i really can't understand why it is so important for you to have such a control scheme. You already said that you enjoyed Melee, so why wouldn't you buy a new Smash Brothers with classic controls?
It's purely a price issue. Smash Bros is at its best as a multiplayer game and I enjoy offline gaming. I've sold my GC which is why I don't have GC controllers any more. I surely won't buy classic/GC controllers just for playing Brawl's multiplayer offline. Excluding Wiimote/nunchuk controls would definately hurt Brawl's sales too.