An interesting polemic: jacket-DIR system. You compare the price of a new BCD, top models, in the most expensive shops - the price of used steel or alu plate. You wrote a lot of similar things, to emphasize the "superiority" of such (DIR- Do It Right) and no other hardware configuration.
Do not forget that the vast majority of the world's divers, dive light and tourists. In periods of "no deco". Do not they need cans, plates, stage, strip for scooters, duplicate equipment, reels cave.
They go 1-2 times a year for a diving holiday. The water is 25 ° C, visibility of 25 meters, dive to 30 meters, with a partner, in a group with a guide. I so enjoyed the diving. Light and pleasant diving tourism, trekking tour labeled as the ridge trail in the mountains, the Bieszczady mountain pastures. Do not "dressed" in the technical configurations of those who do not need it. We have become technicians to mind. Where is the Polish divers will not show there evoke an ironic smile. All dive light and at ease, and our carry. I'm not talking about those who go deep and long, but for those who take 90 kg of equipment for diving, which can be done without deco in 12 l aluminum tank.