If all you do is camp on Friday and Saturday nights, then PA is probably not a good choice for you. If you camp Sunday through Thursday night you'll probably make back your annual membership fee in 2-3 nights. We normally only travel 2 weeks a year and the rest of the time we are at our "home CG" and we've made our money back on a lifetime membership. Just depends on how you plan to use it. They have an app you can down load or you can bring up an interactive map on their website to see CG's listed by state.
Good luck.