It all depends on what you like to do. Do you have any movement issues-like arthritis? Are you making a lot of quilts?
I sew with a group and we make a lot of quilts. One member splurged and bought the Go and then later the Studio. I absolutely love the studio, but weighs quite a bit and needs a permanent home. And the dies are pretty pricey. The Go is nice, but if you have any type of mobility problems it can be troublesome. I keep harping on that issue because last year I had a shoulder strain that took forever to heal and using the Go was really painful.
I keep thinking I want one, but when I look at the cost I change my mind. But I also have a friend who lets me use hers and I pay her with dies and cutting mats when I find them on sale.
I day dream about buying this set:
http://www.accuquilt.com/go-shop/sta...arter-set.html
I keep a list of things I'd buy if I win the lottery. This will come in second after my Sharper Image massage chair