Wii fit or guitar hero 3?

i have £70 so i can only buy 1 of these games for now, please help me choose which 1 i should get first i really like guitar hero 3 i have played it before i and i thought it was a great game my friends like the game and so do my family so i think it will be a great wii game for me to get on the other hand i... show more i have £70 so i can only buy 1 of these games for now, please help me choose which 1 i should get first

i really like guitar hero 3 i have played it before i and i thought it was a great game my friends like the game and so do my family so i think it will be a great wii game for me to get

on the other hand i have been waiting to get wii fit for a while because it looks great and i have heard it's great but i am don't desperate to get it yet

so which 1 should i get ?
guitar hero 3 for the wii
or
wii fit

please tell me which one you would get and why?
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