We are members of Good Sam, Good Sam ERS, Passport America, Camp Club USA, Thousand Trails, Western Horizons, ROD, RPI, Coast to Coast, and have the KOA discount card. We have used them all as it just depends on where you are going. The Passport America and Camp Club USA are great for 50 percent discount on nightly rates, if only staying a night or two. One or two nights savings will pay for itself.