It was actually the price savings we would have over Sprint. We were an independent company up until 8 months ago or so. Then we got swallowed up by Sonepar, who is massive, and has pretty hefty discounts with Verizon.
We aren't using PTT at all anymore. Just going the bluetooth route for our drivers, and smartphones for everyone here in the office.
But I think pricing was the biggest motivator. Even with paying some ETFs we'd end up saving long term with Verizon. Not sure on the details, but thats just what I was told, as the decision came from our corp office.
Our drivers had/have the Duraxt, and when they first got them there were a lot of complaints. But since a couple of updates they've been pretty pleased with the results overall.