A little perspective from a history lesson: NASDS was founded on the Federal Retail Price Management laws, this meant that they carried only one brand of each sort of item, ScubaPro for gear, Bailey for wetsuits, etc. All these brands were (so called) RPM brands which meant, at the time (
now illegal) that they could not be discounted ... everything was sold at list price.
The basic shop scheme was to get potential customer in the door, run a patter about how this was the only safe way to train and this was the only safe equipment to use (ANDI's "Safe Air" is an artifact of this approach). The whole idea of the manikins in four levels of gear, identical to what the training staff wore is classic NASDS. The idea was to create an group of divers who were completely cut off from the mainstream, equipment had special "system" names like, "Ballast System," (weight belt) and "Buoyancy System," (BC) and "Environmental Protection System," (wetsuit) and "air delivery system" (regulator). Everything that the diver could need or come in contact with was designed to maintain the lie that NASDS was mainstream, and everything else was somehow peripheral and shabby.
NASDS had their own magazine, "Aquarius" that had what amounted to the articles and same photos you see in other dive magazines, but the only gear on any of the models was those brands that were sold in the shops, same deal with all the training materials, every photo was RPM gear, all the prose were written using the "system" and "safe" patois. They had their own dive resort down in Mexico and a live aboard, all under the aegis of "Club Aquarius." The end came when the California Attorney General came after them after the change in Federal RPM laws. But that did not stop them, they continued on in just the same way, with a no discount (except for the one time package purchase) policy and, IMHO, highly manipulative and deceptive sales practices.
This approach has been shown to improve sales per student. But it will also, in time, result in the sort of stuff we are seeing with SSA. I've been there and seen it with more that a few California shops.
The question is: is the shop in an area where there are sufficient numbers of new students coming in the door so that overselling them will not create so much ill will that the number of new students coming in the door will drop to the point that the increased profits per student no longer makes up for the drop in numbers.