[gismo1554]

So personally I would go for a 4 rather than a 3 if you can as that extra day at sea is a really nice bonus. That said, price wise you are probably better off booking sooner rather than later. Cruises do occassionally have special offers but its less frequent than holidays and prices tend to go up. Touring plans has a historical price view where you could look up how cruises from a similar time this year have changed over time.

Here's a link to one I picked randomly - touringplans/disney-crui...cat=07A&og= 8

As this shows booking early is cheaper than any offers on a later date