I have often thought that the new machines should come with an indicator showing how many hours have been logged on the machine. When advice is given regarding maintenance, typically they say something like "you should have service or oil or needle change or whatever every so many hours of sewing." Honestly, how in the world would you know when that is? I certainly don't keep track of the time the machine is actually running. I come from a family of sailors and our boat engine had an indicator of the number or hours/minutes the engine has run. It was very helpful when it came to servicing.