To book or not to book

So, I'm sitting here trying to work on planning the honeymoon. Although we both grew up smack in the middle of the American heartland (except without sounding like a Republican campaign ad) and we were introduced by a fellow Midwestern friend, we met and got to know each other in London. And then after we graduated from college we returned to London for six months together and really cemented our relationship. So London has a lot of importance to us. But we also love travelling, so it wouldn't really feel like a honeymoon if we didn't go somewhere new and exciting. And we love the beach, so that also seems like a natural honeymoon choice. And so, our intention for the honeymoon is to primarily go to Greece, but to also spend a few days in London on one side or the other.

We are a bit spoiled living [basically] in New York City, home to three international airports, and tend to expect that relatively affordable flights will be available to nearly anywhere. Unfortunately, we are finding that flights to and from Athens are actually somewhat horrifyingly expensive. As of a week or two ago we had agreed to wait a few weeks and see if prices come down at all as airlines open up inventory, seeing as how not everyone books their travel four months ahead. For fairly obvious reasons we prefer to book plane tickets before we start booking hotels or excursions or anything of that sort.

Today however, because I am neurotic, I happened to check the availability of a hotel in Greece that I have been superly excited about staying in since I read about it. Previously the hotel was available for all of our proposed honeymoon except three nights, which were easily avoidable in our potential itinerary. It is now only available for three nights within our proposed honeymoon. I am freaking out and want to book it! Although Becky is not here with me, I have her voice of reason in my head telling me that there must be other affordable and perfectly wonderful hotels available for those dates on that island. But the panicked voice telling me that I want this one and it's getting away from me is yelling much louder! Hopefully Becky will be home soon to add volume to the voice of reason...or give me permission to book it...

What would you do??