OP: I'd say for you there would be no benefit since you're just going from home to a snowbird location. However, their bi-monthly magazine is top-notch with articles written by RVers and very little advertising.
The Escapees Club started out about 35 years ago by a traveling, young working couple as a way of sharing knowledge and helping others out there doing the same. It is an extremely helpful Club for full-timers with getting registration and domicile issues worked out and has a fantastic mail forwarding service.
It has some home parks and some co-op parks scattered in the southern and western states that can be used year-round. It also publishes a book of normal, private campgrounds throughout the country that give discounts on nightly fees - similar to Passport America.
It has a yearly Escapade (rally) (Vermont this year) with many classes offered and also a Boot Camp for new RVers.
At it's home headquarters in Livingston, TX it has a awesome CARE facility where members can go to recoup after surgery or illness. They can stay in their own RV, have a community meal, housekeeping done, transportation for medical appts. and other perks. It has medical personnel on hand. As folks get older and don't travel anymore, you can even stay there permanently while living in your RV.
We've been members for over 20 years and we've met some wonderful people through the organization. To get the most out of it you have to get involved with it. It's not just about campgrounds.