This gives you an idea on what Bernina have sold for on eBay:
http://www.ebay.com/sch/i.html?_from...p2045573.m1684
If you are buying from a private party, remember you won't have any support or help with learning this machine. I have a Bernina 1530 I bought new for $1,000 in the 90s and she is still my main quilting machine.