I'm not aware of any shop around here charging for a shop ride. Many of our local shop rides are a joint club/shop effort, but neither the shop nor the club charge for them. Certainly, it's hoped that attendees spend money at the shop, but that's the only monetary aspect of them that I'm aware of. Our local club sponsors only a couple fee-based rides each year; the rest are free--although certainly everyone who does them is encouraged to join the club. Frankly, it's the best bargain in town when one considers all that they do.
I don't know how I'd feel about being charged to do a shop ride. I don't think I'd mind if a jar was passed around periodically to cover any costs (like maps or paint to mark the route), but I'd probably bristle at having to pay $75 to wear a jersey that provides the shop with advertising. But by the same token, if they provided a really great group ride that was a lot of fun, maybe I'd get over it. It would really depend on my overall feelings about the shop.
Live with intention. Walk to the edge. Listen hard. Practice wellness. Play with abandon. Laugh. Choose with no regret. Continue to learn. Appreciate your friends. Do what you love. Live as if this is all there is.
--Mary Anne Radmacher