Can I let our membership expire..and join again later ?

They make the rules.

Honestly, with the unlimited towing to the nearest qualified and willing service center, it's hard to beat the price. I think compared to the alternatives, they have the best overall service. I've used it for everything from towing RVs, to dead battery boosts in non-RVs and they've always been prompt and efficient, and the independent service provider (tow truck dudes) have been the same. No questions asked.