Almost all items on Amazon change price frequently. Pick some items and put them in your cart. Then move them to your saved items and leave them there for a year or so. You will probably see a lot of price adjustments. You'll get a notice of any price adjustment every time you go to your cart. I do not know why, but it seems to be some kind of market test or demand-based adjusting. I've been watching a Casio Exilim camera for about a year. I have seen the price fluctuate from around $400 to as low as $219. It has gone up and down several times. Sometimes it hits the low price and bounces right back up within a day or two. It's almost like watching the stock market

BTW, I got my N810 for $199 this way (and that was well before the N900 was even a sure thing). The N810's were selling for almost $400 I think. It bounced down to $179 on Amazon at one point and I nabbed it quickly at $199 before it went back up over $300. (Of course, the N810 price is lower now that the N900 was out, but I bought my N810 at a time when there was no N900.)