One of the names I sold for $699 received an offer of $1,000 on Sedo within two week after the sale. Notified the buyer that since the initial offer is $1,000, and the name is great, you may be looking at a price tag of $5,000. The buyer denied, saying that he doesn't want to have a deal and has different plans with the domain name! It was surprising that there has been nothing on the domain name for over a year. I mean, people leave thousands of dollars on the table, and this is an individual buyer I am talking about. Looking back, I believe I learned the lesson that it is very important to hold on to your domain names, and after proper research, believe in your names that it would sell, price it right and then, wait for the right time to come.