Maybe we can get them to do it for free! Or maybe the Government can pay for as it should be a right to have a hydro!???? All business charge service fees even if its not preformed in house! It amazes me how people want the dive industry or LDS store to give their services away? So dive them all out of business and get good service over the internet! I will continue to support my local Dive shop! There should be more to a dive shop than hydros!
Your initial argument was that divers NEED their LDS to perform certain services, suggesting these services would not otherwise be available. You listed hydrotesting as one of those services. Several responded to point out that shops do not perform hydrotesting, that this service is done at hydrotesting facilities that will perform this service directly to the public, cheaper and quicker. The point wasn't that the LDS charges too much for acting as the middle man for this service but that the service would still be available without the LDS.
Repair and maintenance is also available from online shops, cheaper and often quicker, even with shipping fees and times factored. Dive shops do not teach classes, instructors do. Instructors can teach independently without going through the shop. Travel service is readily available from traditional travel agents and online booking sites. Social activities are available through dive clubs.
The one and only essential service a dive shop provides now is air fills. There are alternatives in some cases - fire stations, home compressors, club compressors - but generally speaking those are not available to the masses. If dive shops ever lose their exclusivity on air fills, they are toast.