Actually bought tickets two weeks back from Expedia.
Won't be wasting BTCs for this, though it does sound cool
A bit of an old post, but how is this a waste? You're getting something for your btc. A waste would be deleting your wallet and getting nothing in return. But as mentioned before, you currently can't buy tickets with btc anyways. I'm sure this will change in the future if the hotel thing proves to be successful.