Who will offer classes, what is the warranty like for each, who will you want to deal with later down the road should you want something?
I have a Janome 6600 P and love it. It came with all kinds of feet of which I have used all, buttonholer which is the easiest one I have ever used, I do alphabet embroidery, has a walking foot, an extension talble which I love, and many other features. I got mine on sale a year ago for around $1200.