I got the Wii in March and i thought it would be a SUPER hard set up, but turns out it was SUPER easy. I am not one to usually read instructions so, when i got the wii, i was thankful that they did not have a huge list of instructions.
The games are SUPER fun.
You can play the same game for like 2 weeks straight never get tired of it then after the 2 weeks you may need a break, so you stop playing for like a day and then go back to it and it feels like you just got it. The games i have are wii sports(comes with wii), wii play and Super Mario Galaxy.
The sports is quite fun, builds up mussels(the first time i played it the next morning when i woke up my arms were aching from boxing and tennis). SMG(super mario galaxy) is really fun i got it in April and it's still not completed, really fun (it's my fav game i have) So far *wii fit would be my fav probably*
And wii play well what can i say it came with a free remote, The games are really fun when you are bored and you wanna try to beat u're record.
Ok now to the wii fit, i am going to TRY to get one.
I checked the wii fit out thoroughly, and it looks like a great deal. I wasn't sure about it at first because of the cost, but with all the things it can do seems amazing, 100$ is not bad, think about getting a electric scale they are almost 60$ (or maybe even more). yeah so if u are wondering why i am mentioning scales it's because when you go on it, it takes how much you weigh and then you write your height. So you can keep track of how much weight you loose.
(hope you get the wii, the best gaming system out there *there is a website i added down below for you to do some research on the wii fit's main page.
=)P.S longest answer i ever gave before! and i gave u're question a star. hehe