My brother had eCruise.co.uk a couple years back. He sold it on GreatDomain.com for $9,000 us currency. I had fingershop.com and sold it for $500 and I sold Biovest.com for $2,500. Both the later 2 names were never advertised, they were type-in's and they emailed me wanting to buy! So I look at the names I have as long term investments. If you can sell one name for what you have invested in names, you are on your way! Just don't forget to keep them current.
Gary T