It depends...it seems like the more specialized the knife place, the more expensive the knives. Back in my hometown, I would go to Army Surplus or the local gun store and I could pick them up for 15 dollars more than online. And I was willing to pay it--I could check it out before I bought it, and that was worth a lot to me.
But at dedicated stores, like House of Blades or the Parks Mall, most of the knives cost about what Benchmade says they should....
I still buy lower end knives from stores...they seem to be more likely to suffer from defects, which makes it worth more, and the price jump is much smaller.
Mostly I just use them to check out knives though. It's not being rude--if they offered competitive deals, which I'm there to see, I'd buy it. Car dealers don't expect me to walk in, take a couple test drives and expect me to buy at least one car, particularly when the dealer charges 90% more than I can get elsewhere and we both know it.