My first DAC was Minneapolis (1980 or 1981, I think). Wikipedia incorrectly lists Albuquerque (1984) as the first DAC with commercial exhibts, but I remember exhibits in Minneapolis, they just had a much shorter time open. Albuquerque was hillarious! The DAC main evening event was held outdoors at the Hilton and was to be food of the world served buffet style around the pool - and then it rained! Rain is obviously rare there, especially in June. So they moved everything indoors so you just wondered the halls for guest rooms that had been turned to buffet rooms. Got people to mingle more though.