Other than that, I'd say that you've got the "sentimental utopian socialistic" view of capitalism, albeit from a perspective where businesses, rather than consumers, need protection from the free market.
See, there's that "us vs them" mentallity again. Consumers don't need PROTECTION from the free market... consumers PARTICIPATE in the free market. They are a market force, not a market victim.
Basically, dude, you are in a tough business, and I feel for you. I think, though, that you need to find more innovative ways to grow than hoping that manufacturers will tacitly agree to keep their prices high, and then step up advertising to persuade consumers to feel good about paying more for gear.
FYI - I'm not in the scuba business. I'm in the advertising business. (No scuba clients... currently.) In advertising we don't care what the price is. We simply endeavor to maximize demand at that price.
I'm not saying scuba industry (manufacturers, shops, resorts, etc) should set prices high and then rely on advertising to hit forecast, I'm saying that they should not focus on minimizing price and hoping for salvation, but rather they should focus on marketing their products in such a way that maximizes demand. If they do that, prices will stabilize to a level where more customers are willing to happily pay an appropriately high, yet market-driven price.
In doing that, everyone is happy.