OffTheWall,
Independents are good for the diving industry because each individual instructor out there who wants to teach diving will find the drive, determination, and creativity to gain access to a pool, to pool time, or acceptable confined water area. When they are told, "No, you can't use the pool," or, "No, no one would be interested in such a program here," independents don't take, "No," for an answer. They are tenacious and many excellent youth and community outreach programs have come about thanks to an independent instructor who just wanted to teach that badly.
If every possible pool and training source were being utilized in a community for scuba training, there would be many more divers in a community to be potential customers. I say "potential" because customers are free to patron the dive center 5 minutes away, 5 hours away or online. But, the more people there are who are turned on to diving, the more people will buy and most people in a community will buy most of their gear from a local dive center. The instructors job is to make a diver. The retailers job is to make that diver want to shop there.
Our lacrosse team was independent of a small local sporting goods store. The store offered nothing, but service with a smile. The owner decided to buy some STX lacrosse sticks because he thought he could sell them to the University of Scranton lacrosse team. His sales doubled then tripled. He had no idea that Marywood University had a lacrosse team too (we just had formed) and many of us bought sticks for our friends and girlfriends just to teach them to "throw" (play catch). Today, I'm sure more people would buy sticks online, but that is a change in retail market. The more lacrosse teams in Scranton, the more sticks he would probably sell. In fact, our 2nd coach hated STX and preferred Brine. We bought STX because we could have sticks that day 15 minutes from school. We didn't have a lot of respect for our 2nd coach either. If we did, less STX sticks would have been in our arsenal I'm sure.
Dive shops don't often have the reach and the tenacity to open up diving. They operate like churches hoping to get people in the doors, while independents operate like missionaries and take diving to places that may even fight them for it. Independents fight the red tape of community aquatics directors and get access to pools with more fury than most dive centers. Once a dive center gets a pool, the center often gets the pool to agree to not let any other scuba classes into the pool to control their territory. Hello, McFly! More divers means more sales! The dive center through which I'm affiliated gets annoyed if I run a classes when they are busy because the class shares retail space. Guess what? I don't like being scolded for teaching so I teach less to stay out of trouble and not always be in the classroom. That is less divers for them, less sales, and less sales and divers for you because lots of our customers are within driving distance of you.
By controlling educators, you stifle their outreach capability and there will be less divers diving.
How would you sell J'ai Alai equipment in MD? Open a store? Or get coaches to create programs in all the schools?