I've been rowing since 2002, when I bought my Model C machine to use at home. For me it's a great exercise. I row first thing in the morning, four days a week, as much as possible. I have participated in a couple of the Concept2 activities, like the Christmas challenge last year, or the Tour of Lake Champlain in 2006. I really enjoy rowing, so those activities are an added bonus rather than a needed incentive. I hope I can keep rowing indefinitely.