[kevincennis]

Mapbox also offers geocoding and navigation, which are quite a bit more difficult than just setting up a server that can host OSM tiles. Obviously, if all you need are maps, that's fine. But if you need maps with search, which I suspect most people do, rolling your own is tougher (though projects like pelias are pretty good).

[linsomniac]

I set up a pelias system a while ago but it never got any traction. We have another geocoder already set up using Experian QAS data, I think we've had that set up for a decade or more, so that isn't one of our concerns. Good point though.