“You get what you pay for with RVs. They arent built to be lived in for more than a few days.”
My sister and her husband have been living in their 5th-Wheel for 2 years now. I actually visited them and stayed in their RV for a long weekend at Fort Wilderness at Walt Disney World and had a blast. Three of us were in there and I was not overwhelmed.
Now, you are correct, in so far as I was ready for the comfort of my home after that amount of time, but mostly due to sleeping in their spare bed, not their master suite.
RV’s have come a long way. Here is their model: https://www.jayco.com/rvs/toy-haulers/2021-seismic/
Like everything, there clearly are different levels of RVs and some, really are not designed or spacious enough for most people to want to live in all year round.
It depends on what works for you at the moment. Are you young? Have a lot of stuff? Kids? Pets? What can you afford to buy? What level of quality do you have to have, minimum? Space requirements? Fuel issues? Can you afford to maintain it?