Double $00.
Here's why...other than the fact that xyz was pretty much a giveaway, the name (when I look at it) is nothing but a bunch of letters.
Since xyz does nothing to describe the product or service, all you have is something that you somehow have to brand.
Of all the countless new extensions you could have chosen, xyz is the worst because it conveys nothing.
Plus, UFOS is not usually pronounced as a word (like, Oooo - Foes). Typically, each letter is pronounced, as in:
You - Eff - Oh - Ess - dot - Ex - Why - Zee
That is just a mess.
Other than the fact that this name cost Zee Row money, why did you choose this?
If you are into UFO's and wanted to create a site or forum, I would have chosen something like; .exposed, .report, etc...these say and relate to the product or service that you have.
Hell, you might even want ufos.dating. Makes about as much sense as ExWhyZee. Then you might be able to show Hot Alien Baby Mamas