How are SketchUp Pro for Education licenses different from full-priced commercial licenses?

The only difference between educational licenses and commercial licenses is that educational licenses have an expiration date. Functionally, there's no difference at all - both licenses allow you to do exactly the same things in SketchUp. Because educational licenses expire, though, we're able to offer free version upgrades on educational licensees, and no maintenance fees. Commercial licenses never expire, but there is an additional cost to upgrade (or an additional cost when buying a new license), unless otherwise noted.