Earwicker, I don't see a problem with you getting what you want when you want it....if that's what you want. Justin does need to get a lot better at communicating delays, but fraud is an ugly word to toss out, especially when untrue, and I don't recall anyone ever not getting a full refund of their deposit if that's what they choose. You also mentioned that there's no prototype. There is, and it sounds amazing with O2s.
I don't know about others who have ordered, but I signed up with a good idea of what to expect, both in the quality of what I'll be getting and the potential delays, maybe lengthy, that may crop up. The first far outweighs the last, in my opinion, and I made my decision. The same is true for other builders (long delays), and not for some. You investigate what you want, weigh things out, and choose. I can't imagine anyone dropping $5000 plus and not taking the time to know the whole deal. Anyone looking at the history of the Aristaeus would know what to expect. Was the wait worth it for the owners? They'd have to tell you, but I only know of yeses. This isn't a quicky mass-produced amp, but that's not what I ordered. If Justin wants to tweak the design more while I enjoy my other rigs, I want him to do it. If I wanted an amp now, or very soon, I'd buy a different amp, as you did. The point is that I want this one, no one else is building it, and if that means waiting to get what I want, then that is what I want. Others may think differently, but then they can buy something else.
To answer someone else's question, I think (could be wrong) that there are 12-13 amps, and about half will have the RK50, including mine.