I used to live and die by what it said on my pedometer, and got a little obsessed, then a lot of injuries. Now I hate the little buggers. Run as much or as little as you can, as often or infrequently as you can, as fast or as slowly as you can and the rest will sort itself out. I did a calculation in my head today (what else is there to do on a long run?) and figured that I might run another 25,000 miles in the remainder pf my life time if I don't push myself too hard, injure myself or get burned out. So, what's the point of measuring individual pace-lengths on a pedometer? Think forest, not trees.