I find myself in the bizarre position of being in agreement with RH.
To label the K10D as a Pro-level camera?
I don't believe even Pentax (the company) would make that statement.
From what I've seen, there is a relatively small group of photographers (as compared to Pro Canon and Nikon users) that make a living using Pentax equipment. The two that I've noticed (through this forum only) are fashion photographers - whose needs are quite different from many of us, and, apparently, in the completely controlled conditions of a studio, the 10D can do the job.
My guess is that for every fashion photographer, there are dozens or even hundreds of non-fashion photographers (sports/landscape/wildlife/photojournalism). I might be way out in left field here, but I don't think so.
It would be hard to argue that the 10D is
not a great value for value-conscious consumers. Maybe even impossible - I know I wouldn't try it.
But let us not inflate its abilities to the levels of real Pro cameras.