Third parties is off-topic how exactly? We are talking about system sales here, and third party games can sell systems. It in entirly on topic, and most of the reason I mentioned it is because of stuff you said. Are you backing down from your claim that no third parties have had success on the Wii? Anyways the Final Fantasy series used to be exlusive to Nintendo and was stolen by the PS1. Resident Evil was announced to be GC exclusive and we saw how that went down. Megaman was exclusive to Nintendo, and Metal Gear started at Nintendo but both shifted to a new system when it was clear who would be dominant (amongst other issues). Castlevania, Monster Hunter, Culdcept, Devil May Cry, Viewtiful Joe, Disgaea, and many other series have all gone from exclusive to the other guy because the other guy has a huge instal base.
I must reiterate that your intentions are meaningless if your words don't convey them. You are implying the wiimote is simply a fad that will fade away and be forgotten because it has no lasting appeal. That is not in the definition you quoted.
As for the Wii being the exception and not the rule, well I see no proof of that. The rule of the most powerful console winning a generation is one you just made up as well. PS1 was weaker than the N64, 3DO, and a couple other long forgotten systems I think. The PS2 was the weakest of the generation. The PSP is stronger than the DS, and the Gameboy's throne is built by the corpses of its numerous technically superior adversaries. The NES was not the strongest either, though memory fails me as to what was. The SNES is arguably the strongest of its generation, but that is only because the one competitor stronger than it was never aiming at big time success.
I say that after three years it will peak and you say after two years. I am saying 09 will be Wii's biggest year and then slowly fade away. It certainly won't have the harsh drops you seem to predict but closer to a 5-10% drop a year for a while. I am basing this mostly off the PS2 sales of course, but it seems a good indicator over all.
And the reason the franchises will start popping up on the Wii is because publishers don't give two shits about artistic vision or pushing a system to its max. They care about money. Developer may or may not want super hi-def textures and amazingly advanced AI but a publisher literally could not care less. They just want their cut. You won't see dumbed down versions, but very heavily focused if not improved versions. PES, Resident Evil 4, Guitar Hero 3 (after they fixed that stupid mono problem) and those types of games will become the rule, not the exception. The Wii's fanbase is far too large for a publisher not to take seriously. There is gold in those hills, and a publisher will want all of it and will do it at the expense of anything. If a game can go from PS3 exclusive to Wii exclusive then simple processing power is not going to hold back any game that has yet to start development.
