I have been preparing my exhibit for this November's VFC 8.0 in California since last November. It will probably cost me a thousand dollars to show my Southwest Technical Products stuff. I won't notice a $10 fee. The first SWTPC. 6800 computer was introduced 30 years ago in November 1975. Today I got the loan of an Ultrasonic Sniffer, the first kit that Daniel Meyer (founder of SWTPC) sold in 1963. http://www.swtpc.com/mholley/PopularElectronics/Mar1963/PE_Mar1963.htm Michael Holley www.swtpc.com/mholley