You should take a laptop with JRiver and a borrowed exaSound e20 and ask to hook it up to some systems. Some companies/reps/owners like to hang around after show hours and try different stuff in their room. You could do a DSD and JRiver demo. You could even announce it during the DSD panel discussion and see if anyone will take you up on your offer.
There are usually guys from different forums such as Audiocircle, AVS, What's Best Forum, and many others that get together for a meal. Maybe you could join them.
There are many rooms where several vendors combine to share the price. For example, the GR-Research room includes:
Danny Richie of GR-Research (speakers)
Gary Dodd of Dodd Audio (amps)
Dave Elledge of Pi Audio Group (power conditioning & cables)
Eric Hider of dB Audio Labs (DAC)
Pete of Triode Wire Labs (power cords)
Perhaps next year JRiver could provide a computer/JRiver for some of the rooms.