Oh, yeah... The reason I treadmill instead of Urban Ranger is I live in the sticks... On the walking scale from 1 to 100 it would get a -21!
I do from time to time walk/jog my "training hill". I have this 1/8 mile 30%+ incline hill leading up to my house I use from time to time. But I have gone back to the treadmill because it is easier to know what I have done and is a bit more comfortable!!
If I did live in a city I would so be an Urban Ranger! Sounds cool!!