The 6500 doesn't have the Accufeed. I love the Accufeed. But it is more $$.
You just have to go and see them.
Great machines though. I had the Pfaff EX4 and it was so riddled with problems, it manufactured in 2010. Supoosidly problems had been fixed, but not on this one. They replaced it. Lucky for me my dealer also sells Janome, I used my credit for the 6600P instead and am very happy with it.