Jeff,
Amazon routinely changes its prices on lots of items, not just the WSM. Sometimes I think they are testing to see how price sensitive people are, in other words, how changes in price affect number of units sold so they can figure out the optimal price point. That's just an assumption on my part.
There have been a number of Fridays where people have reported that Amazon has the WSM on "Friday Sale". You just have to monitor the price yourself on a day to day basis to see when the price had dropped, and then strike while the iron is hot. That $244.99 price is the lowest we've seen on Amazon for the new 2009 18" WSM.
Just to reiterate what George said...If you want to help support TVWB with your WSM purchase at Amazon, it's important that you enter Amazon using one of the links on my homepage before you add the WSM to your shopping cart. If you visit a few days from now without using my link, I do not get credit for your purchase.
You also have to be careful with these Amazon price tracking sites like the one Carl H. listed. They not only track Amazon prices, but offer links directly to the product on Amazon, and when you click those links they get credit for your purchase, not TVWB.
So just to be clear...you always need to enter Amazon using one of the links on TVWB, then add items to your cart. That way TVWB gets credit when you checkout.
Thanks,
Chris