The owner put the domain up for sale on Sedo for $250, which was a reasonable expense to avoid losing type-in visitors who think the site address ends in .com.
Sedo handled the payment escrow and domain transfer process pretty well, calling me on the phone several times to help move things along. From start to finish, it took 16 days. The board operates with a $0 budget and expenditures like this are rare. Web hosting costs are negligible since I'm operating four servers for my various sites and they're not close to capacity in traffic, database access or CPU usage.