@Kye Macdonald
"Now I bought Wii fit 10 days ago... And I've used it every day... It's surprisingly good and fun. I actually hurt a bit at the moment just from playing it."
Well that just goes to show how much you should be getting some real exercise rather than buggering about with a console tbh. It's just another novelty, rather like the Wii itself, which everyone plays with like mad just after they get it, before getting bored and leaving it gathering dust. You even admit yourself that your own console rarely gets used, at least until you got the Wii Fit.
Such behaviour is typical of almost everyone I know who owns a Wii. Of course the initial novelty value meant that it got played to death, but since then the usage has fallen to almost nothing. the Wii Fit revives the novelty value a little but I don't reckon most of these will be in use for more than a month before the boredom factor kicks in again. Kudos to Nintendo as they have evidently created a product which is ideal for the "non-gaming majority", but I don't think you can compare the product with the more hardcore "gamers" consoles like the 360 and PS3, at least not on a capability basis.
Your argument at the end of your post is irrelevant. It's almost as irrelevant as saying "If I have to spend more on petrol I can spend less on my PS3/xbox/Wii, ergo cars are a direct competitor". I know very few people who would have a specific budget for console gaming, or for "going to the movies/theatre/circus". Whatever people have left after paying for food, rent/mortgage, fuel, bills (i.e. the things that they have no choice but to spend on) leaves them with their "spare" budget.
After this point, whether they choose to spend it on going out, DVD's, games, sex toys or whatever is ALL in direct competition with one another. Console makers try to persuade people to stay in and play their games in the same manner that cinemas would try and persuade you to go out and watch a film, or pubs to go there and get pissed. So with the Wii Fit, they try to persuade people that it is more fun and just as good exercise as going to a real gym or having a kick about with your mates. So does that mean that the Wii Fit should be compared directly with sales of sports equipment?
No, of course it doesn't. It's not even like I disagree with the sentiment that Wii sales should be compared with other consoles, as they should imho, but that argument was just so fundamentally flawed that it showed the same sort of understanding of real life financial budgets that I have become used to seeing from politicians (i.e. very little).