Halo + Toon Link
While Wind Waker is a great game at the time it was a HUGE fail hype wise. Had Nintendo delivered the next OoT the Gamecube would have faired much better. The main issue it faced is people viewing it as the kids console, and when they revealed their most mature 1st party franchise with Cartoon graphics it lost all hype.
That said the Gamecube has a 10x better library than the original Xbox. But hype sells a lot, particularly back in 01-03 when most gamers were still under 18.
add me, the more the merrier.