One of my now-retired friends used to go for a bike ride every morning that ended at her office -- she did not take the most direct route because she wanted to ride more. If your new home ends up close to where you work but you want your commute to also be a workout, you might be able to take a very roundabout route to get more miles in. But you'd still have the convenience of a quick trip in the other direction, which I think would be nice when you're working a ten hour shift which I assume does not involve sitting at a desk all day long.