If you're thinking about getting a membership, it will come in handy for discounts for select campgrounds and Camping World stores, and as Gary said previously, you have to use it enough to make it worth your while. I have been a member for two years and have gotten my money's worth, both from the stores and the campgrounds. Last week, I had a new OTA antenna installed on the coach and CW beat every other mechanic I spoke with by at least $150. That purchase, by itself, saved more than the two years worth of membership fees.
When dealing with their Roadside Assistance plan, I have had mixed results. Once when I got the coach stuck in my own front yard and was blocking traffic, it took only an hour for a wrecker to come out after calling RA. However, my last experience with them wasn't nearly as good. While traveling from home in Florida to Asheville, NC this past summer, I had warning lights on the dashboard come on after crossing the South Carolina line. I called RA and was told they couldn't get anyone to come to me until the next day. I called my mechanic back home and he told me what the lights meant and what to do to about them. I fixed the problem myself and hit the road, but if I had waited for Good Sam RA, I would have stayed grounded for the next 24 hours. Unfortunately, the RA program can only be as good as the contracted workers they hire, and obviously in some areas, that isn't good enough.