People seem to be misunderstanding the OP. I think his point is that hardcore nintendo fans would have bought the wii for the marios, zeldas and super smash bros but the reason the wii has done better than is predecessors is that the "non-gamers" bought it for the peripherals and were then advised to buy certain nintendo first party titles when wondering what to buy. Hence, those series will sell even more on wii.
The reason there are sales boosts when certain series are released is because some fans wait for their favorite series to release before taking the plunge while the "non-gamers" keep the wii afloat for the rest of the year.
"Dr. Tenma, according to you, lives are equal. That's why I live today. But you must have realised it by now...the only thing people are equal in is death"---Johann Liebert (MONSTER)
"WAR is a racket. It always has been.
It is possibly the oldest, easily the most profitable, surely the most vicious. It is the only one international in scope. It is the only one in which the profits are reckoned in dollars and the losses in lives"---Maj. Gen. Smedley Butler
