Teresa Yoon listed her old kayak on Craigslist for $140. She fat-fingered the price and typed $14,000. She went to bed without proofreading. By morning, she had eleven emails—not complaints, but offers. One collector asked if it was the high-end Kevlar racing model discontinued in 2006. Another wanted to know about the original skeg. Teresa looked up the faded logo on the hull and spent twenty minutes on a kayaking forum. Her stomach dropped. Her father had bought it at a yard sale in 1998 for sixty dollars. It was a prototype Seda Glider—one of nine ever made. She sold it for $16,200 to a museum in Duluth.
