I don't know how many times on this site I've seen people state that the larger the install base leads to the largest profit. I've also seen the argument, "such and such million selling PS2 game sold poorly considering the 120 million install base." Well here's some data from the latest Japanese sales charts that show install base isn't everything.
http://kotaku.com/5043640/japanese-gamers-love-soccer-hate-new-square-enix-ip
2 new releases from highly reputable companies that are well loved in Japan sold quite poorly.
Inazuma Eleven (DS) - 41,000 / NEW by Level 5
Sigma Harmonics (DS) - 23,000 / NEW by Square Enix (Yohinori Kitase is involved in this game too which brings a lot of credibility to title.)
So everyone who thinks the Wii is automatically going to get a ton of games b/c of it's huge numbers or anybody who thinks games are going to start drying up on other lesser selling systems, think again. Install base isn't everything.
My Top 5:
Shadow of the Colossus, Metal Gear Solid 3, Shenmue, Skies of Arcadia, Chrono Trigger
My 2 nex-gen systems: PS3 
and Wii 
Prediction Aug '08: We see the PSP2 released fall '09. Graphically, it's basically the same as the current system. UMD drive ditched and replaced by 4-8gb on board flash memory. Other upgrades: 2nd analog nub, touchscreen, blutooth, motion sensor. Design: Flip-style or slider. Size: Think Iphone. Cost: $199. Will be profitable on day 1.
