I wanted to buy a couple of hundred dollars worth of stuff this week (some DVDs and a iRobot dirt dog). I added them to my Amazon cart, and went to make sure my wife was cool with the purchases. I forgot about the whole thing until the next day, at which point Amazon had raised the price on those items by over $50! Fine, I didn’t buy them. Today I found the DVDs random in Target for less than the original price on Amazon, and I’ll buy the iRobot thing from Fry’s for a tiny bit more than Amazon originally had it for.
So, Amazon lost the sale by having volatile pricing, and they taught me to go to Target for DVDs instead of buying them online. Nice job Amazon.