If you promote them well you should be able to make a profit but most people wouldn't want them now. Either wait a while with them for the demand to increase or try and develop the domains. One thing I did with Vurg.com was submitting it to search engines and within a few weeks it had reached the top of the google rankings. This doesn't mean much to most people, but it can be a selling point to somebody to have evidence that they don't have much competition from other groups if their website is being searched for on the net.
On ebay at the moment you have BBKT.com that is selling well and what has it got that's special about it except that all letters rhyme and that there are two B's. I think that it is just good marketing personally.