After working out in the gym last week, I have come to this conclusion:
I hate the treadmill. I hate everything about it. Chief among my complaints:
1.) You aren't going anywhere.
2.) There's nothing to do. No scenery. You can't stop easily and start again.
3.) The terrain is the same. Sure you can raise and lower the incline, but it's not the same.
I am not a hamster and I don't run in a wheel. So no more treadmill for me. I'm going to walk outside exclusively from now on.