I will describe our experience and maybe it will fit your needs and plans.
When we retired, my wife and I sold the house, put excess keepsakes in storage and took off with the 2 cats in a truck camper; specifically a Northstar Igloo. We had 2 solar panels and the biggest (300 AH) AGM batteries I could fit in the battery compartment. If you like to travel this is a good choice. We had the mobility and easy of driving a pickup truck with enough conveniences to live full time. We stayed in National Parks, BLM and forest service campgrounds, did some boondocking, stayed overnight at Walmart or Flying J parking lots. We even did some stealth camping. We spent a few days on the street in front of my sister's house. We spent almost a month near another relatives house in a very exclusive neighborhood. In both cases we spent time with relatives and doing museum, city tours and the like. For those who are concerned about the legality. I can only say laws and regulations are often very vague and are often intentionally vague to support LE actions if needed. Make sure you can legally park overnight. Do not take limited parking spaces that are in use by the locals and do not make a nuisance or mess. If you are concerned, check with the local police station. Let them know you want to "park" overnight. You do not need to use the evil word, "camp". They will understand what you mean. We even had the police suggest the best places to stay for a day or two.
Travel in a TC can be very inexpensive. We rarely stopped at RV parks or expensive campgrounds. We easily got by with solar panels. We have learned how to cook, wash, get by and take Navy style showers with only a 3-5 gallons of water a day. Propane lasts us a month or two per tank. In hot weather we used a few gallons a month running the generator for A/C in the late afternoon. If it is too hot to stay without A/C overnight we would move on. In 2 years of full time living we averaged $7/night for camping.