My 2 cents, fwiw...
Having been around RV's most of my life and owned multiples of them, just a few thoughts:
Yes, a travel trailer/5th wheel is handy since you won't be dealing with an extra motor and you would have a vehicle to run around in. But... if you are mustachian, the price of a towing capable vehicle is kinda prohibitive, they are expensive themself, especially when you add in the not so great gas mileage of said towing vehicle for your 'getting around' times. If you already own such type of vehicle, then it wouldn't be too hard to find a good used one for not so much, there are deals out there to be found. Growing up we did a 2 week trip with a travel trailer that included 3 adults and 5 children, I don't remember any bad times, only the good times!! We went through and saw stuff in 6 different states. (dad welded on a carrier on the back of the trailer to hold his 2 homemade mini-bikes he built for his 4 daughters, fun times!) He pulled that with a big Ford van.
We did the pop-up route when I was a young kid, although we didn't keep it long and didn't enjoy that one. However, it was light and can be pulled with just about anything. Had heat but no A/C or bathroom. They make them nicer now.
Motorized, have done just about all of them. True story: dad found an old class A Winnebago that was ugly as heck but cheap! Didn't know if it would make it across town, but we loaded up 9 people (one being my very pregnant aunt) and drove it from south Texas to California and back over a 2 week period. So many memories!! :) (no worries, dad was an awesome mechanic and went with tools)
But I digress.. Personally, I've owned and drove and camped in Class A's and Class C's. Just last weekend we took a 26' Class A motorhome across the state pulling a heavy Harley, was an 8 hour trip there and back to ride on the Talemena Trail in AR. We bought that rig for just $4k, man-friend did about $1k in repairs and upgrade to increase gas mileage (it worked). Planning on selling it soon, will probably make a profit. Will be getting a Class C next, though.
I've had a few Class A's, but as the driver or the passenger, just don't feel all that safe up front. This may be a personal reason, as I've had the priveledge to have been driving a 31' Class A going 70 mph with the cruise set when i had a front left tire explosion that put me in the ditch across the road. Scared the shit outta me!! To me, class C's are just more secure feeling. I've had 2 over the years and have loved them both. The first one was just 19' but I could, and have, hopped in it and took off on my own to camp whenever the mood struck. It's like driving a bulky van. I bought it for $2300 in '02. Actually, I loaned it to a friend to live in when she was homeless, her, her son and big dog lived in it for 4 months and loved it!! When I sold it, that person let a man live in it in her driveway for 6 months. It's do-able. The last one, and wish I had kept, was 25' and very well laid out, motor ran awesome!! Bought it for $5k and would have driven it anywhere Will be wanting another one like that one when I sell current one.
Motorized ones you can always find a cheapy light car to tow (like a Metro or the like), or put on a bike rack, even tow a moped.
Am actually in the business, working for an RV dealership my sis and bro-in-law own. Waiting for my dealer license to be mailed so I can sell, as well. They only sell the high end 5th wheels and sell quite a few of them. People from all over custom order to their specifications and that's what we sell. Most of the buyers are downsizing and go full-time, so they are higher priced, but dang!!! they are nice! Highest priced one I watched roll out of there was just over $200k.. oi!
Am kinda excited to see what the dealer auctions will be selling, might find a good deal on my next one, a class C. Not only will it serve the getting away and vacation times, will also serve as a house should I ever need it. And a retreat... many times in the past you could find me hanging out in the RV, reading or chilling or just decided to cook dinner out there, lol. I credit my little RV for many hours of uninterrupted studying while in school. I would recommend 'camping' in your driveway a few nights to get a feel for the bedding and the stuff you might need but can't think of off hand.
Yeah... I can totally see myself being able to live in one, no problem. Anyways, there's my 2 cents worth.