I have the Go and it's the best thing I've bought since my sewing machine. I paid full price for mine and would again. I don't think the dies are expensive for the time and fabric they save me. I have about all the dies. I stock up on mats when I find a sale. I bought the Go Baby when if first came out and got it for $89 introductory price with carrying case, and it works great and there are many dies that fit the Baby including strip dies. My DD borrowed it and I'll never get it back. LOL. Lots of tips on youtube for the Accuquilt die machines. When I first got the Go, my DH asked me why I was carrying around a portable typewriter everywhere.
I have the Alto Quilt Cut 2 and it's very nice but I like the die variety of the Go.