If you want to obtain a long-term copy of Mathtype, an academic license is available at $57 per person.  Purchase details are available at <http://store.dessci.com/?>.  CIS' software team has checked with the vendor, and an extra 10% discount is available if a purchase of greater than 50 copies is made.  At this time, we don't expect demand to be high enough to reach this threshold, but if you're aware of a large number of people who want to pursue this discount, please let us know and we can attempt to aggregate a group order. Otherwise you are free to purchase directly.