Well it's a lot more expensive to come to New York and pay for a Bway show than it is to buy a cd.
I'm not disagreeing with you though, I don't know how interested his fans would be in a musical he wrote. I guess I just thought he would/could use his influence to get a recording made had he really wanted to.
I think one of the main reasons Hardbody got recorded was because of Anastasio. That's strictly conjecture on my part, but it seems likely that his name added value to the prospect of a cast recording.
....but the world goes 'round