I have a premium domain with estibot valuation of $18k. The domain has .org extension and the word has 246k searches per month on google with average cpc of $0.20 It was a google product a while back but not anymore and nor is it listed in google trademark lists now. If you have experience in selling domains over $5000, this is something for you. I am willing to pay upto 20% of the sale amount. Please prove your experience and share your profile at the marketplace where you plan to sell it.