stats like this can be deceiving. i'm a student and qualify for the discounts but frankly i liked the deals thru online venders with added ram so i bought thru them instead. i imagine quite a few other students are doing this as well. if apple wants to record student/education accounts as something important to them, they are going to have to offer better deals.
on the other hand, i think overall sales and profits are more important than where they come from.