Star mentioned it earlier... there is a distinct difference between getting an upgrade and being assigned an up-category cabin on a guaranteed booking. Taking a guarantee comes with a certain level of risk as to cabin location. If you choose to take the risk, then as with most risks, there are rewards -- in this case landing in a higher category cabin. In reality, this is exactly how the cruise line wants it to play out -- they need to keep their lowest published fares available for booking right up until the last minute in order to attract more passengers to fill the ship ...and the lowest published fares are the inside cabins. Basically, if people with inside guarantees land in higher category cabins, that means the cruise line was successful, in that they sold the inside cabins to passengers who wouldn't purchase a more expensive cabin, thereby filling the ship. At the same time, they've made a bunch of people with inside guarantees really happy so they'll become repeat passengers. We've cruised with them 18 times now, and we've only been upgraded twice that I can recall ...and I've never booked a guarantee. Lately I've even stopped requesting upgrades, we're getting picky about cabin location and you can't always get your original cabin back if you don't like the upgrade.