I probably don't count in this as a beta user. I am currently using a Karma that I did not pay for.

The other five I have on order from J&R Music World for other people I know (various gifts and sundry) were not free. They were list price. I like the Karma enough that I preordered them. Unfortunately from a place that does not have them in stock yet.

I actually intend to keep one of these purchased ones for myself, since it has the latest hardware advances that the early betas did not have.