That's the one mate cheers.
@Adversus have a read of this to see how purchasing houses isn't easy and how the Kopites used a lot of underhand tactics to purchase the properties to get to where they are today.
Is it possible to move the school and purchase houses? Of course it is. But it can be a long process and not something where you can throw 60-70k at someone and say "well we think this is what your house is worth and we would like to buy it". A lot of folk are probably happy where they are.
The school I think would be a damn sight easier to move than trying to purchase 40-60 houses ( if indeed that's what we would need to do ).