Re: considering full time rv-ing someday....
Jim's right, there is no one brand that you see more than others. What you might want to focus on is what can you afford and what kind of tow vehicle you have. Class A's are nice, but if you have to take it into the shop, your house is in the garage. That's true with any of them, but with a travel trailer or 5th wheel, you at least still have a truck. If the truck is in the shop, you still have somewhere to live.
They all have their quirks, they'll all need maintenance, just like a house. But this is a house you periodically bounce down the road. Things loosen up, they break.
It's a lifestyle that takes some adjustment.