I hadn't heard there was a 6700 model - looks like it's brand-new, available Sept 1st. I am spotting a couple differences - more computerized looking (a drawback in my book) but faster SPM (1,200 instead of 1,000) and wider zig-zag on the new one. It'll be interesting to see if it holds up to the test of time like the 6600 has - I'm not sure how long Janome has been making that model but it's been out for years. I adore my 6600, it's such a fantastic machine.