Wayne, a show like LSAF is a lot of work but please understand that a lot of us really appreciate all the work everyone put into it. It is a great showcase for mom and pop companies that put their heart and soul into their products. Like you said, there isn't any other venue for these products to be heard.If you decide not to do another fest, well, bummer. It was a great ride while it lasted.
You might skip a year, make some changes, build some momentum and try it again. Given the economy right now it might be a good year to lay low anyway.
If LSAF was scheduled on a different weekend (or month) than the AK fest you'd be fine. Like you said, you are far enough south that you'll have good weather earlier in the season. A different hotel location or city might be cool, too.
The Lone Star fest was obviously a labor of love. I learned a lot about audio that would have never been picked up by reading magazines or hitting retail shops. LSAF was the first place I'd ever heard a 2A3 amp, open baffle speakers and Bob Brines great sounding single driver speakers, your Pi horns, Geddes and Duke's waveguides. The Great Plains horns and Audio Note stuff was also amazing. Skip's Squeezebox got me started on computer audio. The hardest part of the shows was NOT buying all the great sounding gear ... at least at the same time. There are still things on the wish list and a lot of that list is stuff from LSAF.