Thats seems highly unlikely to me. Using there current strategy (which may occasionally be abused I admit) they are seeing ever increasing levels of profitability and increasing market share.
It is fact (and if you actually read your agreement when you purchased your other notebook, you would have known this).
"Faculty, Staff and Students purchasing from the Apple Store for Education Individuals will be allowed to purchase the following quantities of product per academic school year:
Desktop: One (1) may be purchased per academic year
Mac mini: One (1) may be purchased per academic year
Notebook: One (1) may be purchased per academic year
Display: A maximum of two (2) may be purchased per academic year
Software: A maximum of two (2) per software title may be purchased per academic year
Apple TV: There is no limit on the quantity of Apple TV purchases per academic year
iPod: There is no limit on the quantity of iPod purchases per academic year"
http://store.apple.com/Catalog/US/Images/salespoliciesEdIndividual.html
Even if you were going to buy a desktop instead of a laptop, you are not abiding by the agreement if you bought a computer for someone that is not eligible for the same pricing.
If Apple really wanted marketshare regardless of the profit, they would be selling the machines all at this discount. Clearly, that is not part of the business plan. The education discounts are a targeted to specific markets because that is where they think they can make the biggest impact (i.e. they get people to buy into the Mac while they're in school and hope to keep them after they leave.
cheers.