Harvard is very interesting in this way - they have so much money in their endowment that they seek all kinds of investment. Real estate is one of their favorites. When they buy property, it can no longer be taxed. This is why the towns surround Cambridge hate when Harvard buys up property. Watertown, in particular, has really been furious at this trend. In Worcester, the colleges use up city resources and yet pay nothing in taxes in terms of city services.