I don't really understand how Microcenter does it, but they often have equal or better prices than Amazon, and in any case, they'll price-match. Also, there's no worry about whatever I buy turning out to be counterfeit.
The one slightly odd thing about the Microcenter experience is how all of the salespeople have little stickers to take credit for when they help a customer find something. Are they on commission? Is this Microcenter's way of identifying the most useful floor staff? They're never pushy about it, but it does stand out in stark contrast to pretty much every other retail shop I can think of.