Cruising is truly a state of mind. Personally, I am an explorer. I perfer to arrive somewhere, spend my time learning about and visiting places in that area. Cruising doesn't lend itself to that.
First, you get your shore time in about 8-hour bursts. There's a big push to go on an organized trip and without pre-planning (I didn't) it's pretty difficult to get much done, other than go on a tour or walk around the closest local area you can find.
Choose your poison -- organized tour or plan ahead. In Cabo, we probably did it right. A snorkeling tour (the water was about 65 degrees...I wear a wetsuit surfing in 62 degree water) which also ended up being a tour of Land's End, Lover's Beach and 15 minutes watching a humpback mother and calf. Dos Equis, margaritas and nachos with cheese from a can that must have been labeled "7-11 surplus" made this a truly Mexican experience. It was fun, and in the moment, I was able to fit in with that style of tourist just fine.
So, am I a cruising person? Probably in the same sense that sometimes I'm a sit my butt on a beach chair at a resort person. In the end, its just another type of vacation activity. If you get your head in the right place, a Margarita in your right hand and a book in your left, you and the cruise will get along just fine.