Never been there but I've heard he has good medicine.

Because he charges extra doesn't mean he's in it for the money. Maybe he thinks his medicine is so good that it warrants a steeper price. Also, he's limiting his medicine, perhaps at the detriment of his patients, and for what? I think if he was greedy he would try to push more product out the door. I think he's ultimately trying to cater to the business class stoner, because who else can continuously afford that?

Because he charges $20/gram, I won't even bother.