The owners of ExpertReviews.com used Flippa instead of a site like Sedo or Go Daddy to sell their domain.
The auction ran for 15 days and had two bidders go back and forth. Bidder 1 won the domain at the buy it now for $20,000.
The domain was registered in 2004 (thought it would be older, but did drop once) The listing says the domain is a PR 5 and content will not be included in the sale.
Interesting they chose flippa but well done on the sale.