Don't get me wrong. I really like the idea of living in a tiny house. I intend to find a smaller house than what I'm in now when the market settles a bit. I need to be able to sell the place I'm in now of course.
The question is really, Why a tiny house on wheels as opposed to an RV? The idea is typically the same. If it needs to be mobile, why not better areodynamics. Rv's are also very well equipped for most any need that you can fit into one of these tiny houses.
I can see myself in a tiny house if I was building it and it was permanent. I'd rather though go purchase a $2000 garden shed and finish the inside out, but if it needs to be on wheels? Is it just the looks?