I have definitely noticed the increase of jam nights. I recently switched careers, choosing freelance bass work, lessons, and the shop, as my sole source of income. The jams definitely close the door, on bands. I understand their importance, but, it is a perpetuating cycle. You jam, you might play, for the house band..at the jams. I've stopped driving, to Knoxville, unless it's a paying gig. I even have friends, in that scene. But, Like the rest of us, I can't always play, for free.