1 to 3 times a years is Hookerville: Rent.
I looked hard at towables and RVs this past year since I am working in NC two weeks a month at the small composites factory I am part owner of.
I penciled everything out: Cost per mile, maintenance costs, loans, price of a camp ground hook-up (they are not cheap), driving experience (I rented an RV for two separate trips) and the RV was by far the most expensive option.
I have the spreadsheets to prove it
I rent small SUVs and stay in hotels. No muss, zero fuss.