I purchased tickets for the Sept. 6 '07 cruise on August 3. I received the tickets by mail one week later with an assigned cabin on the Main deck, 10 units from the rear. My retired Navy father informed me that there is a much smoother cruise in this area. Especially important during hurricane season when the waters can be rough.
I opted for the OVG because I would get an OV for the price of an interior cabin on then Riviera deck. Any picture window OV room would be an improvement. And I could spend the money I saved on material things.
I realize there is a chance that my cabin number may be reassigned up till date of cruise, but either way, I still end up with something better than I would have originally paid for.