The best money I have spent on my Bernina was to pay a tech (cash) to come to my house and show me how to take off the housing, clean and oil, what to avoid, and what to watch out for. My very old Bernina 1260 is still sewing like new and has never been in the shop for repair. I deep clean and oil it regularly. It would cost me about $120 per cleaning at the shop now. The light switch won't work but I never turned it off when I'm sewing anyway. I don't think I'd do it for the new high end machines but for the mid level I would pay a tech to give me a lesson. After the warranty is over, who cares.