And if anyone can pull it off, Nintendo can. Thankfully, they've left behind the stupidity that was GBA-GC connectivity. Maybe now they can focus on devloping killer apps.
It's worth a rental for it's single player, and the VS multiplayer is fun. But it's nearly impossible to get four people to sit down and play the HA mode.
My brother got a dirt bike around August and has only rode about 10 miles on it, the power of that thing scared the crap out of him and hes afraid to get on it I think.
My brother goes through phases of what he likes to do so rapidly it's ridculous. He's gone from Motocross rider to Dungeons and Dragons nerd to basketball player to paintball enthusiast to prep/socialite to football player wannabe to punk-rock drummer and revisited most of them several times with in the last two years alone.
And he actually rode his 3000 dollar bike for like five months, and then quit, and my father is still making montly payments for a bike that never gets ridden.