Lifetime Member of Passport America...works great for me. Check out their website, check out campgrounds in area you are going, check out any restrictions and then check out rvparkreviews.Com on that particular campground.
I only pulled out of one without staying. Some very nice ones, some OK for the night.
GS, 10% off, that adds up during a trip. Escapees, I have, but not used yet. KOA
I use once in awhile, just a member since 1992. Keep it renewed.
I just did the a thousand Trails Zone Pass, so will see how that works out.