I agree with you that if you must have the fixed aluminum frame without the elevator and pivot capability, the price is worth the extra $300 over the Dell UltraSharp 2405FPW that was $1,019.15 this past week. It's a plastic frame, but it has an elevator and the whole screen can pivot (supported in Tiger) 90°. So yes the price drop is a good thing. But I think that Dell's Monitors are still a better choice even now. List is only $1,199 and Dell puts it on the 15% discount block regularly.
I also chose a Dell UltraSharp 2001FP 20.1-inch 1600x1200 monitor that has the same stand features for only $561.75 after a 25% discount off $749 list. I won't miss the other 80 pixels wide that Apple's 20" wide has (1680) as much as I will be glad I have a full 1200 pixels of height instead of only 1050. Now that the OS finally - after far too many years - supports portrait mode, I am really glad I bought both these Dells.