$29 would be an individual die. The Go! Cutter cost $280.
The picture of the quilt pattern is misleading. There aren't any diamonds in the pattern, it's all HSTs and there are no set-in, or Y seams, at all. Of course, the actual pattern is neater than this, I just drew the lines to show the squares.
I really don't like doing diamonds. It just never seems to work out right for me.