I've got 68 days on HAL (soon to be 89), almost all in the penthouse suite. Not to sound like a snob, but given that the cheapest inside cabin usually runs about 10% the price of the penthouse, for the same amount of revenue (and a lot more profit) given to HAL I'm getting the shaft.
Why do they use cruise days as the metric rather than dollars spent (including on-board spending)? That would seem to be a much more appropriate item to reward!