I've owned 3 homes over 20 years in the generally stable Dallas market. I've spent the last 20 years renting apartments and I have been very happy to watch other people take care of the yard, the AC, the roof, the insurance, the taxes, yada, yada, yada. I've also saved enough money with my college degree to retire at 62.
When times are good people tell the world how stupid renters are to be throwing away their money. When the recession comes and housing prices crash you don't hear that song as much. When you own real estate you always have to pay the taxes, the insurance, the repairs, and when termites bloom in Spring (like they did for me 20 years ago) you'll think "How do I get out of this nightmare?"
Meanwhile, back to your main area of interest, you need to decide:
1 - Are you trying to live as cheaply as possible?
or
2 - Do you want to travel around in an RV?
You can live very cheap if you buy a used trailer with no tow vehicle and pay someone with a truck to tow it to a mobile home park where you lease long-term. If, on the other hand, you want to travel around in your RV life gets much more expensive. It's your choice.