Corporate Deere reps have been pushing service contracts for some time now to their dealers. IF you already intend to take the unit to the dealer or have them come to you for service (service does not mean repair). Then find out what it will consist of, when? Where? What? There should not be anything that states replacement when worn, that is an indicator that it is a hose job. But it can save money, you are essentially paying for oil change, filters, or whatever ahead of time before price increases on the parts, labor rate increases, etc. For folks that have the time/ability to do these things themselves then probably does not pay. Everyone should have an idea of what their own time is worth and no matter what it is never free. Good luck.