Well the verdict is in for me. Treadmills are great if, and big if here, if you are in a time crunch, space crunch, or no babysitter crunch. Otherwise tooo boring for me. I even had music but it just seemed to drag. When I run outside I get to look at all the neighbors, and the park and I get to dodge the crazy dogs in the neighborhood!
I do see the wisdom of them and wish I would of had one in Flagstaff when the weather was brutal. A lot of times I would have run had I not had to freeze to do it. Besides that fact I did spend a whole lot of time on the trainer for biking. Maybe I would not have used it after all.