Since I've been shopping for park models, come to find out there's no real price differential, I guess. In fact FR makes em for the same price.
Advantage of destination trailer, then is
-- Tankage (fresh, black, gray, propane) for off-grid use
-- More beam, you gain about five feet in width in the living room due to slides. Which is pretty durn nice
-- Tows like a (big) travel trailer, doesn't look like it needs a permit
Advantage of park model:
-- More vertical space... cathedral ceilings, clerestory windows, loft
-- Unclear to me if it needs a permit, def. gotta watch vertical clearance if you're moving it
-- Residential AC
-- Looks more like a house than a trailer, if that matters to ya
-- Option for shingle or metal roof
Both are technically RV's, build to the same engineering standards, and both can be plopped down in RV park/resort that's zoned for that sort of thing.
I imagine you have to start looking at tiny house builders like
these guys before you start getting to the hand-crafted fit/finish we see in high end class A's. Expect to pay $300/sqft for any tiny house really. I'm not against factory built homes, not at all, but they do all start to look a lot alike after a while.
Here in Fla I'm kinda stuck with 400sqft trailers due to zoning laws etc. If you have a bit more wiggle room in terms of beam or square footage, there are a number of modular home builders who can hook you up, I've spoken with
these guys before, sounds like a sharp operation. Price is right but don't forget site prep, they need a foundation of some sort.
Don't mean to talk your ear off, I did kind of a deep dive into the tiny house vs. RV (vs. container home!) thing about a year ago as I was thinking about developing a 5ac lot in New Mexico. Whose zoning laws will eat ya alive. Too bad, it was pretty awesome property, south-facing hillside up in the pinyon/juniper forest about 10 miles from Santa Fe. So many good options available if the govt would just get off our backs