A few years back, maybe two, I offered a MEC 900 for sale and a guy on this site closed the deal. I sent it to him before I was paid. He claimed he never got it but USPS claimed they delivered it. He said he was out of town and somebody stole it off his porch. Maybe true, I really don't know. I did a couple of things in that deal I've not done since. Fool me once.... Anyway, here's the point. Thieves do follow mail and UPS delivery trucks around and steal the packages they leave. These days and at this time of the year that seems to happen more frequently. My advice, require a delivery signature every time. Insurance is a good idea but don't expect replacement value. Think more about deeply depreciated value and only then if you have the original receipt.