I would have been interested in a Vitamix 3500i in mint condition: But why only 12mt warranty on the more expensive used ones and then 24 months on the cheaper used ones? Please clarify this and make a correction before buying. The manufacturer generally gives a 10-year manufacturer's warranty anyway, is that also the case for the used/inspected models? Thank you for answering and adjusting the warranty to 24 months. Best regards Pascal