That brings up the interesting topic that the "natural" design progression seems to be making a fancy mobile home, but I'd think you can start from a fancy RV just as well.
The RV part would help when you're out in the wilderness instead of in a utility provided mobile home park. Some RV features like batteries for DC power, extensive ventilation instead of relying on AC powered air conditioning, etc.
Of course on the other hand RVs aren't as energy efficient as mobile homes because of a desire to minimize the tow vehicle gas/diesel consumption rather than propane heating consumption.
As a specific criticism I am fairly unimpressed with the size and features of this $30K "rv". Its not that much better than an elaborate $5K or so teardrop trailer. On the other hand its a little bigger than a $90K conversion van. (And when exactly in my lifetime did conversion vans change from middle class machines in my youth, to the current mid level sports car prices?)
There is quite a market for them, don't knock it. Buy a cheap lot somewhere, pour a slab, wheel the tiny house into place, nice starter home for a young'un in one weekend flat.
Pour a slightly larger slab than you think you need, and call it a patio. Inevitably no matter how big a slab you pour you'll find a way to fill it up and wish you made a bigger one. The folks I know with RVs and hunter's cabins and similar want to spend time outdoors, that was the whole purpose of the purchase, and the tiny cabin or RV is just somewhere to sleep out of the rain, they actually live on the patio when not hiking / fishing / hunting / snowmobile / whatever.
I wouldn't bother with the slab either. Set it on blocks but also ensure that it's anchored on all 4 corners. Instead of a septic tank, change the design to incorporate a Clivus Multrum toilet and put in a large water tank for rainwater and to act as a heat sink for a heat exchanger. (Depending on climate, of course.)
The RV part would help when you're out in the wilderness instead of in a utility provided mobile home park. Some RV features like batteries for DC power, extensive ventilation instead of relying on AC powered air conditioning, etc.
Of course on the other hand RVs aren't as energy efficient as mobile homes because of a desire to minimize the tow vehicle gas/diesel consumption rather than propane heating consumption.
As a specific criticism I am fairly unimpressed with the size and features of this $30K "rv". Its not that much better than an elaborate $5K or so teardrop trailer. On the other hand its a little bigger than a $90K conversion van. (And when exactly in my lifetime did conversion vans change from middle class machines in my youth, to the current mid level sports car prices?)