PADI would be lost on a lot of collectors - "don't hold your breath coming up" is about all that some divers know. Many haven't even heard of decompression sickness, never mind what you're supposed to do about it.
Putting this kind of diver in an environment where more dives correlates with income doesn't bode well.
Putting this kind of diver in an environment where more dives correlates with income doesn't bode well.