I plan on purchasing an iMac, but I would like to wait for a price drop if there is one coming soon. My current computer works, but barely, so I don't want to wait too long. I know that there is a promotion in the education store for $100 off a printer with an iMac that expires on Oct 20. Do they keep renewing this promotion? I'd like to buy within the next month or two and take advantage of both a price drop and the printer promotion.