The Dreamcast died despite having more killer games than any gamer deserves because Sony promised the PS2 could do photorealism and people skipped the Dreamcast in favor of the PS2. The Wii U may be in a similar position but time will tell if it has the killer library that the Dreamcast had. If it does and still dies it will be all on the gamers that ignored it.
I know I can't be the only one waiting for a 3D Mario, full Zelda sequel, Prime style Metroid, on-rails Star Fox, or at least a new Mario Kart. When we get those I and many more will jump on board.