Rambo writes "Amazon is apparently researching consumer's buying habits by arbitrarily changing the prices on DVDs and other products. Computerworld has a story here about it. Amazon refused to say when they would halt the practice, or what criterion they used to set the different prices." Of course I haven't spent a nickel at Amazon since that whole one-click shopping thing, but I can imagine ways that this could be good or bad. Imagine I buy a lot of Anime DVDs. They could note this, and raise the prices by a buck or something. I tend not to do real-time price shopping on items like this: I looked at a dozen online stores when I started purchasing, and I settled on the one that had the features & prices I want. But 2 months later they could jack the prices and it would be months before I noticed. Alternatively they could lower the prices, or lower prices on similiar items as an incentive to buy other things. Very odd possibilities and I'm not at all sure about how I feel about it.