We hadn't ever cruised or gone to Mexico, so it was a good experience for us. We really liked Cabo (which seems to be most people's experience here), and would readily consider flying there for a long weekend (probably not an entire week, though).
Would we take this cruise itinerary again? Nope. We'd consider going to the Carribean in December in a couple of years.
But given the choice between the West Coast and the Carribean right now, in the summer? I'd take the West Coast and skip the uncertainty of hurricane weather. I think I must be the only one who didn't mind the cooler weather and overcast days. I was happy to not have to worry about sunburn, especially for my kids!