Pete, you can try Air Freight out of Mccarran. You just have to pick it up at the airport or have someone do it. It was the cheapest way for me to get some stuff home. Greyhound was 100, UPS was 150+, mailbox etc was out of this world.
I used us air and paid 65 or about .85 a pound.

On the other side, you can ask someone at the show and have them take it home as baggage?<g>