I find that tiny house festivals are very useful, there is so much to learn at a tiny house festival and what you focus will be your choice.
I usually go to tiny house festivals to:
Being a builder and an advocate for making tiny homes a legal option in as many places as possible I also look for stuff that would violate local, county and state building codes. I then figure out how I would do it differently or if it is something that could be updated in the codes without compromising the safety of the homes occupants or their neighbors.
Finally, as a speakerand advocate I look at it as a chance to make new acquaintances and friends, talk about ideas and hatch plans to work on making tiny homes available to everyone as a housing option anywhere in the US.