Once someone gets their feet wet form trying or completing one and then get "hooked" on the POWER :-) they normally jump to the more powerful HAWTs.

Curiously enough, the city, in an area like where I live, are more likely to allow VAWTs, like the one fungus has up than they would a HAWT any day.
VAWTs are normally slow moving and are there for looked at as Lawn Art or safer with less room needed to keep things safe.
For small units VAWTs look to be even easier to bulid Windstuff Ed's learner kits is a beautiful kit and a prime example.

I certainly would not count it out, have a look at Pepa's unit.

JMHO:-)
Milage my vary...

Cheers
Bruce S