I would try craigslist, sewitsforsale, the classifieds on this board or on patternreview.com first. Machines sometimes get damaged in shipping. It's nice to be able to test drive before you buy. On eBay, look for sewing machine dealers that allow returns at least. I got a Pfaff 7510 from the eBay store of (famously reputable) Brubakers in PA with a one year warranty.