I know what you mean.
When I bought my first iMac (November 17, 1998), they offered the "five colors" iMacs on January 5, 1999, and missed the return offer by two weeks.
Next I bought my iMac G5 (December 15, 2005), they released the Intel Macs in January 2006, and missed the return offer by three days.
Then I purchased the iPhone 8GB, June 29th, and they now decide to suddenly lower the price and drop the 4GB model, it makes no sense.
I have been with Apple since 1988, and I am hoping to get a new Mac, but I am going to wait until Leopard comes out, and to see if they are going to have newer machines after the OS release. It may be a good eight or nine months before I get a new computer.