I wonder if the camp organizers could maybe find a compromise of sorts. E.g., if it's $90 for the whole weekend, including meals, maybe the day fee (no meals, no lodging) for Saturday only could be $40 if paid in advance or $50 for last minute drop-ins.   Friday evening only (sans meals and lodging) might be $20/$30. Sunday only could be comparable to Fri. eve. only. Something like that.

Also, although I realize the food at Rainy Camp is unusually healthy and delicious and a major draw, I wonder how much the camp might be able to drop the weekend fees if people provided their own food and cooking/clean-up.    When I attended the Alternative Healing Retreat at Breitenbush (OR) in 1988, the weekend was way less expensive than a normal Breitenbush weekend, partly because everyone brought the equivalent of a bushel basket of produce, people also brought and took care of their own dishes (bowl, cup, flatware, etc.) and all the cooking and clean-up was done by the camp participants.
This may not be an option in quite the same way at Rainy Camp, but I suspect that anything that would cut down the amount of food and service personnel time needed from the camp personnel would help make the weekend more affordable.

Anyway, Reggie, do think about coming to Sunny Camp.   Mary is very flexible in accommodating oddball participants. ;-D

Genie