Love my Janome 6600. I was able to put my machine on lay-away at sale price, 20% down, make payments as I could. So far, I have not had any problems. As I was taught, clean your machine in between projects or after 15 hours of sewing, change needle with every new project ie: one full sized quilt or 2 wall hangings, etc.
I was under the impression that Kenmore was made by White and not Janome. If I am incorrect, I apologize.
I agree about the online help. Janome has a long way to go to beat Bernina in this area.
Whatever you decide, get what you know you need. Think about how often you will use the 'bells and whistles' and if you don't need them don't get them.What you think you need on a machine, may not really be what you will use. Make sure you research the net about the different machines and what they can do for you. Enjoy whatever you get and make sure you get lessons on how to use your machine if possible.