I just bought a used Bernina 730...with the embroidery unit, bags/totes for everything, Bernina table with the back that flips up, over 100 CDs & flash drives (patterns), every foot that fits a Bernina (I swear I have no clue what most of them are for!) and a box of thread and the acrylic table extender to make a flat bed when I take the machine somewhere. It is 5 years old, and yes, I got the deal of the century at $500. I spent less than $100 to have a Bernina tech check it out and make sure it was working fine.
The deals are out there...just need to look for them. The lady I bought it from started out asking $3,000 (she probably has 7-10K in everything). Hope you find a great deal like I did!