Improv Resource Center - Forums

So I did some one-off practice sessions over the summer and the coach was always $15 or $20/hour...I swear. I recently got into the practice group scene and everyone is charging $25 or $30 an hour. I don't really care and I know most of these/you people are poor and deserve the money, I'm just curious if there was some industry-wide decision over the past few months to raise the going rate like 10 bucks.