It's just a glitch. I am sure they will be all worked out by tomorrow. Because right now if you go to the checkout, the glossy screen makes it remain the same price even though on the previous customization screen it dropped it $135.
Shoot! I was hoping it was just a great deal hidden in the page. Oh well, I'll still buy one to replace my beige G3 (whopping 300MhZ) tower. I think the performance difference may be worth it. It's time.