First is that Verizon's dropping activation and upgrade fees through the end of the year. That'll save you a few bucks, which is always a good thing.
And second is that if you break the screen on your Droid Turbo, Verizon will replace it once during the phone's two-year contract life. That's an improvement on what we've seen HTC offer as part of its "HTC Advantage" service, which only covers screen breakage for the first six months that you own the phone. Verizon notes that those who buy the Droid Turbo with the monthly "EDGE" payment plan also are eligible for the screen replacement.
Icing on the cake for what appears to be a pretty beefy phone.