Chef, you said it all (almost).

I love the feeling when I get to the top of the biggest hill on my commute and know that, once again, it didn't stop me.
I love realizing that places I used to think of as "go there in a car" places are places I can reach on my own steam.
I love the sound my chain makes as it slides through my derailleur.
I love that my students think I'm some kind of superman because I ride my bike to school, and that they always tell me, I saw you on your bike, Mr. Weiss, and you were flyin'!
I love that I'm setting a good example for my kids about being adventurous, active and self-reliant.
I love every time a driver waves me through an intersection or gives me a thumbs up. Sharing the road can work and it's fun.
I love checking the weather and laying out my gear the night before.
I love the sound the studs in my tires make when they cut into a patch of ice I didn't see and keep me from hitting the pavement.
I love getting on the scale and realizing that I'm lighter than I was when I was a junior in high school.
I love that I could go on and on about what I love about commuting...