Becky Quick, writing for Fortune:
If I want to buy the hot new videogame Mass Effect 3 and have it delivered to my home in New Jersey, I have a few choices. I can go to Amazon.com and pay $59.99. Or I can go to BestBuy.com and pay $59.99, plus New Jersey sales tax of 7%, for a grand total of $64.19. Almost no one would choose to shell out the extra $4.20 that Best Buy (BBY) is charging, and therein lies the problem for traditional retailers.
Assuming we aren’t talking about pre-order type folks, how about all the people that want something right now and not in two days (assuming they have Prime shipping)?