Even if you do like campgrounds and full hookups (DH does), you can still save a bundle on rent and gas if you just stay put for a while. Weekly rates give you a break and monthly rates give you an even bigger one. Where we are, now, in Hill City SD, it's $25 a day. But weekly rates are $150 and monthly rates for full hookup are $495. They have no showers, toilet or laundry. However they do have a fabulous area for the dog (important to us), a creek full of trout, plenty of things nearby to do, and town is only 3 miles away.
There are ways to save no matter what your preferred life style is.