How an Original Velvet Underground Acetate Wound Up in Portland (And Could Be the Most Expensive Record in the World!) Yard sales are like junior high dances. You show up full of anticipation, bump into a lot of people, and then leave disappointed. But in both cases, an ineffable sense of possibility spawns return, over and over. Maybe this time I'll slow dance with Tiffany Pfeiffer. Maybe this time I'll find a first edition of Thomas Pynchon's The Crying of Lot 49. Maybe my life will change within the hour. And so earlier this year, with flickering expectation, Warren Hill...