We have had Dish at home for many years. I bought a vip211 receiver and Tailgater for the RV and added it to the home account for $7/mo. Worked great. And when we traveled outside our home viewing area, a call to Dish and we got local network channels from the nearest major city.
Only downside was that when they changed the local viewing area for the Rv to some new area, it also changed it at our home. No problem as we were not home any way. But our daughter moved back in with us, and it prevented her from watching our home channels. So I changed the RV to a separate dishformyrv pay as you go (monthly) account. That works great also, particularly since we only use the RV a few months during the summer. Now I can change the RV local viewing area without affecting the home receiver viewing area.