Annoying that all the stands I spent time talking to people on were the ones without the nice nibbles - you can sometimes do a complete lunch from foraged freebies, but I feel guilty grabbing sweeties from stands of companies I have no interest in!
One thing I like about that show over others (most of which have died now) is it's a mix of electronics, mechanics and metal-bashing type people, with some cool CNC porn on view - they had the Hypermill cycle helmet on display (not machining one it live unfortunately)