^You're devolving into mysticism here... "allure"? "direction"?
Good software and nicely designed easy hardware and an accessible familiar image covers the final user experience.
Price, retail and distribution support can be catered by MS as well as by Nintendo.
My mother will call an "iPod" any MP3 player and doesn't care about the difference really. Even though Apple certainly knows design and how to market for a certain crowd she isn't a part of. She knows she has to put the earbuds on and press play. People called "Walkman" any portable cassette player, even though it was originally Sony's and it was trademarked.
Stop thinking like an experienced, niche gamer: for you the Wii has a philosophy, has features, has a library. It comes from Nintendo so you know what games to expect on it, and it has undertones of nostalgia and allure. You're one that knows and cares about the difference between an MP3 player and an iPod.
For most people of the widened audience the Wii is that appliance they need to buy to play tennis with their kids or to do those funny stepping exercises. Like the toaster is the kitchen appliance you need if you want toasts.
The day they'll see enough TV advertising of a different toaster, and the nice employee will demonstrate for them at the shop that toaster of a different brand - that for the same price also makes waffles - they might buy the latter.
In other words the trouble for Nintendo will come when the catchphrase "only on Nintendo Wii" will be emptied of its current value. Easy come, easy go.











