I want to make sure I understand this. The Crack is an amp that you assemble yourself? Looking at the page, it’s not clear to me what exactly this involves–is it mostly soldering wires?
I understand how some people might like this sort of thing, but I don’t really understand why they don’t sell a pre-assembled version and charge more money for it. If it’s as good as you say it is, there’s surely people who might want it who don’t feel comfortable assembling their own electronics.