Out of all of that knowing my heart rate has been important; a few times I've had to stop and cool down a bit because I've exceeded my max HR, though not by much. What I've liked most about it is knowing how far I've gone and how fast--seeing that I can shave some time off my distances--and the calorie burn (used to justify a burger, of course...)
But then I discovered I can do this:
Clicky to see full page
I can see maps of where I've been, my average paces, sweet little graphs.
And because it maps my whereabouts and I can share them with the world, I'm likely to expand my distances, because my ego is that big.
Barring rain, over the next 10 days the Spouse Thingy and I are going to check out some other places to Trikke (because he has a few days off...) and we'll probably do some other things, but dangit, I want to make my maps all squiggly with red lines.
And then, justify a burger and fries.
A really big burger and fries...