Link is now taken down, but last I heard, they were selling the soup.io domain for $40k https://flippa.com/10566726-advertising-entertainment

The owners listed the domain on flippa asking for 40k+ and stated they had an existing offer of $40k and wanted to see if they could get a better offer from flippa buyers.

update: minimal listing details are available from bing cache: https://cc.bingj.com/cache.aspx?q=https%3A%2F%2Fflippa.com%2...