Some people don't need long-term contact with a psychiatrist so I think it sounds like he is honest in admitting that he is only able to help those people. I would be very wary of a psychiatrist who prescribed medication at the first visit, so that is also a good sign for me. He may very well be more interested in teaching and/or research, but he will presumably be aware of the fact that a teacher in his field who loses touch with patient work is going to be a bad teacher, so that isn't a bad sign at all in my view.

Less positive are his steep prices, but you are the one who can compare his prices to those of other psychiatrists in your area. To me it sounds very exorbitant, but I'm not in the US so am not in a position to say, really. 30-minute appointments sound pretty short to me but I think it's probably normal for psychiatrist visits in the US, from what other people on these boards have said.