I really appreciate the advice from all of you. The more I read these posts and spoke to the wife, the more disagreeable the thought of buying an RV slot, no matter how pretty the view.
After all, the purpose of the RV lifestyle is to enjoy the accompanying freedom. Parking on a slab and letting the RV deteriorate beneath the PNW rain and snow contrasts poorly to that goal.
Besides, if my wife doesn't visit a Walmart every other day, she starts vibrating and going into withdrawals. Having to drive 30 miles one way to accommodate her fix would be a real pain.