“The instruments often are no-going-back kind of propositions: Make a good one, and you’ll never buy a guitar from the rack again. Denver tech worker Tracy Leveque, 46, has built several guitars, but he said the the last, which he built under Dick’s instruction, was especially fabulous. Still, he sometimes visits guitar shops, and goes straight to the lock-and-key rooms where guitars begin at $5,000, and gives them a whirl. ‘And nothing compares,’ he said. ‘I never found something I would buy.'”