Everyone is voting with their wallet and buying from LP.
The consequence is that instead of SOME profit, the local dive shop is making NO profit on gear sales (and no sales either!) so now they're trying to shift it to gas, since they've already whored themselves on the training side.
That's all they have left.
Such is the price of market distortions.
If you dive a lot, especially if its Nitrox, a compressor may be in your future. The economics of it are such that if you do 100 dives a year, and so does your buddy, you have a gas cost of $2,000 if the tank of Nitrox is $10.
The "marginal cost" of that tank is approximately $1.50 (that is, the O2, filters and maintenance on the compressor. You can safely ignore the electricity - its about six cents. For air as opposed to Nitrox the marginal cost of the tank is about $0.75.)
So, if the fill station costs you $4,000 (about what it will cost) you are 470 Nitrox fills away from paying for it, at which point your continuing cost per fill is $1.50.
Oh, by the way, for those who say "oh your compressor will need to be completely rebuilt by then" that's a load of garbage. 500 tanks will be about 250 hours on a 3.5cfm FAD compressor, which is about one quarter of the way to the FIRST scheduled valve overhaul and only two oil changes in to scheduled maintenance!
Do the math, then talk to some friends, and give the shop the finger. I'm sure you can figure out which one is appropriate.
As soon as I have my station in and running, and the total costs for the hardware, I'm going to post a complete breakdown - I think it will astonish a LOT of people as to exactly how bad you're getting bent over the table by your LDS on your fills......
Don't even get me started on how badly you're getting raped if you're doing Trimix.