Well I commute because I need to lose weight and get some exercise to help with my high blood pressure. More and more though to save money over buying gas is also a compelling reason. Regular just hit $2.09 a gal here and I am seriously thinking of selling my car all together, if I didn't have a 3 yr old that needs to go to Drs apts and daycare in the winter I would do it I think. I can take him on the trailerbike in the summer but wouldn't do that to him in single digit temps in the winter.