Well funnily enough a couple of years ago I was looking for a new excercising machine as my treadmill had broken and I didn't really want another treadmill and I researched online on substitutes I could use instead. After some research I came across rowing machines, looked at all the cardio benefits and the full body workout it gives and I've been hooked on it since. I've even been rowing on open water a few times as well, quite a bit harder and difficult to get used to especially keep your balance on the water but definately a better experience than the repetitive rowing machine.