Great ideas - as with great jokes, great books, and great speeches - are usually great because they point to a common element of humanity. It might be a common desire, or a common struggle. A common dysfunction, or a common experience.
Tiny houses may just be such and idea. If you spend any time listening to, watching, or reading the words of tiny house advocates, a few common threads seem to emerge.
A desire to connect with the environment.
An experience of joy in living with less.
A rejection of the status quo to follow a path of their own choosing.
An opportunity to craft something, to make something real with their own hands.
The enjoyment of time alone.
If some of these (or other ideas) are not just a description of tiny house fanatics, but rather elements of humanity that we all share, then the tiny house ethos might just be a great idea.