Well, I have to agree with you about the crickets....but I know LOTS of people that keep hissers as pets.
Sort of like how some people keep giant millipedes as pets, or tarantulas, etc....there is a person who supplies feeder insects, that is interested in raising beetles...not as feeders...but just because he LIKES beetles.
There is also a girl that posts on another forum, and I believe it's Luna moths she raises....again, because she LIKES them....never to feed to her herps.
Honestly...I wish I could find someone who DOES raise hissers near me. Apparently they are now banned here, and I'd love to try and feed them to my cham....maybe some NEW food choices would encourage him to eat on his own again.