Gamecube's launch was massive by any standards. But it fell off from there quickly. This is one thing people seem to fail to realize is that a system can sell well for a couple months, but it needs to continue to do so in order to be a success. That's why this "Wii's been selling well for 3 months and is now going to dominate the world" BS doesn't cut it. Sony was the status quo by the time N64 launched. As a result, nobody pushed the panic button when Nintendo passed it because they knew it was going to be short lived. Nintendo's always dumbed down their systems. With the SNES, they chose a slow processor, which wrote Sega's marketing for it. With N64, they went with carts. For 20 years, we've listened to them drone on about how only gameplay matters, while the competition provided good gameplay just with updated graphics. Shortcuts have never paid off for Nintendo before.