In my opinion their pricing algorithm is a little twitchy. If they get a lot of buys it can jump pretty quickly and pretty far. Sometimes it does and sometimes it doesn't.
Some here don't agree with me and I have no inside information, so it's just my opinion.
You can either wait for the price to drop and/or go on sale or you can pick something else. Obviously, you can check other reputable sites for their prices.
Other than that, your stuck.
Maybe they do it to throw the urgency to purchase in there. I know when I see a good price I jump. Oddly, I do see good prices on components that I'm pretty sure are selling well and the price stays where it is. I really haven't been able to pin it down.