DCBC, one other thing it's about, and the one thing that may be most important for many is availability of options. In my area, for example, there are 4 shops in reasonable driving range. All of them are PADI stores.
This is a valid point.
One of the real problems I have with all of the complaints from the instructors of other agencies on this board about how much PADI sucks is precisely that their business model either doesn't allow them to compete in terms of market penetration or they are too lazy and broke to do so. These agencies are verging non-factors in the diving community as a whole, and are simply non-existent not just in my locale but in many areas around the USA. How many divers did SEI certify last year? A few thousand at most? Was that even 1% of what PADI certified?
Steak houses don't really try to compete with McDonald"s. Just because there is a McDonald's in the area doesn't mean that there isn't a market for a Steak House.
If the only thing that counts is numbers, PADI wins. If however quality means more to you than quantity, you go elsewhere.
For me, how the diver is trained means more to me than I much I've made in training them. If other instructors didn't feel this way, PADI would be the only certification agency.
It is ludicrous to complain about how much PADI sucks when these agencies are not giving the millions of potential dive customers a meaningful option to choose an agency other than PADI.
Perhaps, but imagine a certification agency that starts selling diving certifications on the Internet and the 90% of the public go that way. PADI would no longer be the powerhouse it once was. They would complain that what this other certification agency was doing was wrong and unethical. The other agency would tout its numbers and success. PADI would complain about the lack of quality in diver education.
This is how many of the other certification agencies and their instructors look at PADI today. PADI can try to argue numbers, but the quality isn't there when compared to the training philosophy of the other organizations.