Roger,
I would definitely go to RMAF. It is well attended by audio enthusiasts as well as the audio press and is a great place to demonstrate your products to people who care. If you look at the event coverage in Stereophile, TAS, Positive Feedback, etc. you can see the kind of attention the show gets. The show has been expanded to two hotels this year. I don't know what that means for room availability at this point, but I think it's safe to assume there is a better chance that rooms are available than when it was just one . . he, he. It you want to know anything else about the show give me a call or shoot me an email. Kevin Hayes has exhibited there so you may want to pick his brain from a manufacturer's perspective.
Adam