Eh, it's sort of like ice hockey versus street hockey for me. I have no interest in getting ice equipment, driving a distance usually late at night, to go and play ice anymore. I haven't even been on skates in forever. But street hockey, grab a stick, gloves and shin pads, and boom, you're ready to go, and it's a whole other level of fun in a lot of ways.
So to go and get scuba lessons, deal with the gear, etc., meh. I'd rather just put the snorkeling mask on and get out there, swim like a fish, get a workout.