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I wouldn't pooh-pooh .travel domains just yet. I believe that this gTLD could get feet yet. (Disclaimer: I don't own any, so I have no hidden agenda.)
Montenegro uses Montenegro.travel for its tourism ads on CNN International, and if other countries start doing this, you will see this gTLD going manistream, at least in the travel ad industry.
xyberdomain, you have a great term. Unless you get an offer you can't refuse, I'd hang onto this one for the long term.
As for current value, I would guess xxx, but that has nothing to do with future potential.
Good luck with it!
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