I like being outside, and apart from the commute I'm in an office building all day. A good chunk of the commute is on a gravel nature trail, and it's a nice quiet break before work starts.

My commute is relatively short -- about three miles -- but there is one very challenging hill. If I go shopping after work, it adds a couple of miles, so I'm on the bike for 10 somewhat hilly miles on a pretty typical day. I feel good that I am getting a little exercise. A lot less than many of you, but enough so I'm not worried about it.

Then there's the pure joy of riding the bike itself, apart from the other attributes. This in itself is a gift and the fact the it's also useful - gets me to work, is good for me, puts me in a quiet environment -- is awesome.