Thank you everyone for the feedback. And I agree that it is a niche market segment and that they draw a different clientele. However, it can be a lucrative one. THOWS can be useful to the homeowner who has a little extra land and wants a new income. They are extremely attractive to the younger generations of travelers who want an experience when they travel. They are also appealing because they are eco-friendly, again appealing to the younger generations of travelers.
And while they are not high-income, they have a high ROI. They can be purchased fully finished for around $85,000 and rent consistently (at least along the East Coast) for $190 a night with strong bookings year round. That means that they are completely paid for in about 3 years.
Tiny home villages can be very attractive and produce a good income. Mr. Baum is correct that they have limited mass market appeal, but they do appeal to the younger, growing traveler so the market is only going to get larger.