I bought a Go last year. For me, it's been totally worth it, even though I haven't used it very much. I use the 1.5" and 2.5" strip dies the most, but it really depends what type of blocks you like to make. I also have a number of curved dies (winding ways, drunkard's path, etc), since I wouldn't have the patience to cut that type of quilt by hand.
$100Cdn is a great price. I paid $262 when they were having a 40% off sale. If nothing else, you can try it out, and sell it if you don't like it without losing any money.