This is huuuge. Really big. So important.
I'm gonna start this by talking about my recent purchase of a 1D X Mark II. Feel free to chip in with your own anecdotes.
A few weeks ago, my wife and I were out and about and near the only local camera store left in Dayton. They'd bought out all the others. I've been planning and saving for the 1DX2 since late last year, and I was ready to buy. I'd seen a story on Petapixel a week or so before about local camera stores closing, and it made me feel a little guilty, so I asked my wife if we could stop in since we were close. She decided to stay in the car and I went in.
I walk in and there's one salesman helping an older couple and one salesman helping a mother and daughter. I go up and stand next to the Canon dslrs in the case. The guy with the mother and daughter takes them over to the far side of the store to look at tripods or something. I wait.
They people near me are asking the salesman "I know this doesn't take film, what do we have to use?" and other questions like that. I wait. I'm patient.
I look at the Canon cameras--the highest end cam they have in stock is a 5D Mark III. Not much to look at. I wait.
I decide to walk to the back of the store and look around. I see there's another salesman in a room talking to someone, probably giving some sort of "know your camera" lesson or something. I couldn't tell. Totally bored, I walk back to stand by the Canon case. I'm getting irritated.
Why am I irritated? Because I feel like a ghost. No one has looked at me. No one has acknowledged my presence. No one said "Hi, is there something I can point you to while I'm taking care of these people? I'll be with you in a minute." Nope.
So, I stare at the floor, feeling like I'm wasting my time and that of my wife who is waiting in the car.
I decide that 10 minutes was long enough, so I decided to leave.
As the door opened, one of the sales guys, the one that had been helping the mother and daughter, looked over and said "thanks for coming in". I laughed and left.
So, that's the story of how the local Dodd Camera in Dayton, Ohio lost a $6,250 sale (before tax).
I felt no remorse giving B&H my business.
Pay attention to the people who try to do business with you.