Dave, Brian brought up a good point. In transit costing and statistical reporting, route mileage is an important number. I've been on some transit systems that will send a bus out to run a route, reading the hubodometer for mileage. It is always inaccurate, because of tire wear. If they chose a different bus, they'd get a different figure. When I find that, it always has to be redone (I use a smartphone app and ride each route, gives me hundredths while all I need is tenths.)
But, the hubodometer mileage is good enough for things like maintenance needs (PM every 3000/6000 etc. miles, you'll be in the ballpark). So, a hub designed for your revs/mile won't be anal-retentive accurate, but will be close enough.