I'm kind of the same way...economically I simply can not justify owning a motorhome, yet I'm still attracted to the danged things! Have been, ever since I was a kid. Back then, my grandparents had a 1976 GMC crew cab pickup with a slide-in truck camper. They took me on lots of camping trips as a kid, and in the campgrounds I'd always admire the big Travcos, Winnebagos, Airstreams, and other rigs.
I envisioned being able to just drive your home anywhere, at a moment's notice, and just being free to explore the countryside at your own pace. But then I grew up, realized I'd have to work for a living, and just wouldn't have the time to enjoy a motorhome. Also, the reality of being 6'3" really sunk in. I have to duck under the roof a/c unit of most motorhomes, and I just feel hemmed in. And most of them have a really horrible driving position. It's like driving a bus.
Still, I want one! I'd definitely go used though, because they do take a steep depreciation hit. I remember in 2000 I looked at a 32 foot or so motorhome that was 10 years old, on a dealer's lot. It was really nice, low mileage, and well-equipped. I think they wanted $20K for it, and I'm sure they would've bargained. I'm sure a brand-new 32 foot Class-A motorhome would run you close to $100K for a halfway decent one, and the really nice, quality ones can easily top $500K. Especially if you get into bus-based ones.
Also in 2000, I almost bought a 1974 Travco 220 (Class-A motorhome, but in a tidy 22' length). Now that might be going back TOO far, but it had a rebuilt Industrial 440, and the guy only wanted $2900 for it!