Wii EA sports active...tempting

I was in the gym the other day watching Ellen as it happens and I saw this part of the show:

Firstly I just have to comment on how fab Allison Sweeney is looking despite only recently giving birth especially given the fact that she returned to shooting the biggest looser in some crazily short time after giving birth ( I think something like a week or something I read somewhere but dont quote me on that.
Also I am very excited about this new EA sports active game. It actually looks like it could be a potentially good workout. And the concept of challenging others online is a super fab one that I would enjoy (partially cos I would clearly win every time...cough cough!!)
I toyed with buying a Wii last Christmas but reasoned that if I bought a Wii, then the only reason I would really be buying it for would be to use it with the Wii fit and after trawling through tons of blogs, critical reviews and websites as well as talking to friends who actually have the Wii fit, I concluded that it may just be that little bit too easy for my level of fitness. Then plus the cost would add up to an entire year of gym membership for me. And given my short attention span I know that the Wii would be played non stop for the first 3 days and then....nada, an expensive paper weight gathering dust in the corner.
But this new game actually has resparked my interest in the Wii all over again. I was watching it while boredly running on the treadmill and thought to myself, wow perhaps my workouts could actually be slightly more interesting?! I would love to try before I buy. Hopefully a friend will invest soon so I will be able to give it a go!!