I bought my GameCube with a MarioKart DD bundle back in the day. It had that cute Zelda bonus disc that contained Ocarina of Time and a 20 minute demo of Wind Waker. I must have played this demo 10 or 15 times (always going through the same pirate fortress) before the Wind Waker box finally arrived in the mail. Good times...
So back on topic the GameCube started without a pack-in but saw several bundles throughout its life. Nintendo does a lot of things different now than before so it's not easy to predict what they will do about Wii pack-ins. I like the rationale of the OP though and think that Wii Sport will remain the default pack-in for most of the Wii's life.
Maybe they drop it when the Wii is at $99 by Christmas 2011 or maybe another title that is as revolutionary as Wii Sports comes along in 2008 will be the new standard pack-in, who knows? Nintendo's 2008 line-up is still very much clouded.
I don't think there will be a Wii Sports II though. Miyamoto and Iwata have said before that that won't happen. And while there may well be Wii Fit bundles it won't be the default bundle because the extra hardware would invariably drive up the price by at least $50.
Another possibility would be to put Wii Sports into internal memory for a Wii hardware revision that will surely come sooner or later.
Hardcore gaming is a bubble economy blown up by Microsoft's $7 $6 billion losses.
