I tried for the first time this morning and didn't have much luck. My store had 1 Bostitch compressor and nail gun pkg (that others have purchased under $100) on "clearance" for $209. It was also the display model. I went to customer service and asked if they would match their online price and one lady said "yes" and the other said "which store, is it out of state?" I showed her the one in NC for $59 and she noticed immediately that it was out of state. They called the manager and asked what he'd do for me (lady that called put zero persuasion into the request to the manager) and he said $150. I passed.
Like most things, I'm guessing it'll depend on what the item is, quantity on hand, how long they've had it sitting on the shelf, how much the discount would be, who's trying to help you get the discount, who the manager is, what mood they are all in on that particular day, whether they think you smell nice or have bad breath, etc, etc.
Worth a try but the response appears to be far from standardized.
It is that way all over in the "Lowes" "Home Depot" world. I do not understand how they call themselves a chain store when everyone acts "Independantly"
I wish Mendards carried a better tool selection, I would be in there every week. ( I guess I already am ) lol