Pac-Man gobbled up by video buffs The ad for the Pac-Man home video cartridge game said it was "at last" in stock here, but "hurry, quantities are limited." Madison area residents, hot on the trail of the popular but elusive Atari item, did just that - hurried to Copps department stores in droves. Each of the three local Copps stores received 96 of the cartridges this week. They went on sale Tuesday morning, heralded by ads in the local newspapers. Two stores sold out by Tuesday evening and the third store sold out early Wednesday, spokesmen said. "The response was unreal," reported Steve Martin, general merchandise manager of the Aberg Avenue store.