Some great deals can be purchased in used machines. I would buy only if you trust the seller. Test it out for a long time at their house. Several hours not just a few minutes. Yes, you probably will lose the warranty or any classes that Bernina gives. So it's wise to double check. I know of several perfectly good machines that were purchased and barely used. Unfortunately, the sellers now really just want their money back not just the money owed to get out of the loan. There is no advantage to purchasing used if it's only a few hundred less than new.