> most people don't exercise effectively and are too lazy to get a trainer so a workout watch is a good way to know that they didn't really work out as hard as

> most people don't exercise effectively and are too lazy to get a trainer so a workout watch is a good way to know that they didn't really work out as hard as they thought they did. OK, out of all the responses to my question on here, this is actually the only one that sounds like a decent argument to me.