This has been rather interesting reading...up to a point. I wonder, of all those saying they have no need for an LDS, how many are not certified divers yet? Oh gosh, are you already divers and don't need it anymore? Did you, at one point, need the evil shop getting to that point?
Going to a different point, supposing that there may one day be no nearby LDS available to host the training, who will pick up the slack? So PADI and NAUI instructors can teach independently from a shop. Big deal. Now those instructors are supposed to stock all the gear needed to teach? Well, I suppose everyone could go ahead and buy full sets of gear online so they can start to learn. Now the student needs to find an instructor who will teach someone using gear that has not been vouched for by by a trusted tech? And no, I am not interested in verifying the safety of online-bought gear. Talk about a lawsuit waiting to happen.
I know a lot of people think that the price they paid for that OW class was outlandishly expensive. But here is the secret...dive training is a loss leader for selling gear. No shop can stay in business selling training and air fills. Talk about a lousy business model!
If you think you don't need the LDS, then don't go there at all. Go get your air fills at the local sporting goods store, fire dept, or where ever else you think you can get it. Just quit bellyaching about a business that serves a purpose to those who want it and need it.