I too favor Passport America. We belong to Coast to Coast also and have camped at affiliate (out of our network, $10 a night) CG's but as stated before their locations are very limited. We have used C2C in combination with PA on long trips and find PA has the most availability but you need to pay attention to the restrictions. Some PA CG's are Monday thru Thursday, not good on holidays, limit the number of nights the discount is good for and such. Still we find that we use PA the most. A good value if you travel a lot. If you only go camping a few times a year then I would not bother with any memberships in any of them.