Can they legally do that? I thought you couldn't sell booze in this state for less than its retail cost? (e.g. a 750 ml bottle costing $20 holds a little over 25 oz., or slightly less than 17 1.5 oz. shots, which would come out to about $1.20 per shot).
Now, I suppose if they're pouring from a 1.5 liter bottle the cost-per-shot might come down to about $1.00, but when was the last time you ever saw a bar well stocked with large sized bottles? Conceivably they could refill the 750's from a 1.5 L bottle, or possibly use a gun, but can't recall off the top of my head having ever seen either of those methods used around here.