There is
some truth to this. Four years ago, when my sister and I were buying laptops for college, we each wanted to get a MacBook Pro. Back then there were fewer models available, and the cheapest MBP was 15" @ $1,999. I went through the higher ed section of apple's site, and put in an order for two MBPs @ $1,799 each, iWork on one, iPods, and printers (both free after rebate). I believe the total in the cart was over $4,000. I had done this a week or so before my parents were planning on placing the order, just for fun.
I cancelled the order a few hours later, just because ordering was a week away, and then a couple days after that, someone from Apple called asking why I had cancelled the order. He did
not offer any additional discounts on top of the education ones, but he did offer to take care of the order personally and made sure the order shipped as soon as possible. He took my order over the phone, I gave him my parents credit card information, and a few days later, a lot of boxes came from Fedex
I'm pretty sure this happened only because it was a large order, and Mac sales have increased a lot since mid-2006; this may not be policy anymore.
Just my .02...