When I travel, I generally seek out Fed/State/City&County parks. I prefer their natural ambiance, plus, their daily cost is generally lower than commercial parks. The America The Beautiful "geezer" pass offers 1/2 price at most Federal parks and I really enjoy the C.O.E. campgrounds. Domiciled in Florida, I take advantage of Florida's policy for 1/2 price camping for residents age 65. Occasionally, I stay at commercial parks while visiting family or doctors. I've paid between $350 and $550/mo for a monthly stay with electric included.