Well, I looked all through ebay today and blech! There is sooo much junk in there it's pathetic. Talk about your spammed boards.
Regarding Celebrity Names: It has been said here that celebrity names are a no-no. For those that feel that way, I suggest you check out ebay.
Domains sell themselves if they're quality and priced right and the enduser knows it's up for sale.
You can also sell to resellers and traffic buyers at the major domain name forums: DNForum and DomainState. Traffic prices tend to be multiples of proven income. Reliable traffic stats or 'a test' is the norm for verification.
Non-traffic generator prices tend to be a small faction of (reasonably) expected end user prices.
title of auction:www.widget.com! dictionary name! make millions!
in body of description: "www.wigdet.com, a common mispelling of the popular word widget." usually followed by keyword stats for the correctly spelled word.
The other thing I notice is guys charging 10-20 dollars "transfer fee" for the domain then giving a free push within the same registrar.