[footfootfoot]

It depends on how it's done. I had a client hire me to shoot a bunch of work by an artist for their product. The artist wanted to piggy back on the client's job without asking the client, essentially, she'd get the benefit of the images without having to pay other than her offering me the cost of film and processing.
this was just one of too many duplicitous things she'd done in my presence and I told her to fuck off.

Another client (The first and last wedding I ever did or will shoot) asked for the negatives after being told explicitly and in our contract that the negatives were not for sale. After dealing with her breaking at least three other terms of the contract, I lost it with her.

There have been other times where I've given people freebies because they were polite or good clients or I was in a good mood.

You could make a counter offer, but you have to remember he is going to spend time sorting through his files trying to find the picture, this could be instantaneous if he is organized or time consuming if not. It breaks his workflow and may be an annoyance if this is not how he is set up to work. Every minute he spends dicking around with a jpeg for you is a minute he's not billing 200 an hour. Consider that he may be doing you a favor even responding to you because he liked you.

Personally, I wouldn't try to talk him down any more than I'd try to talk any other professional down.

As for your comparison to the file size from your point and shoot and his camera, it has nothing to do with pixels. Kind of like saying that you and Barry Bonds are the same height so you should be as good a ball player as him.

Most importantly, Sir, we're not the taco stand