Elna, Janome and Kenmore are made by the same manufacturer and have been for about 4-5 years now.
Just like with the old RCA-Zenith tv's the manufacturer takes each machine and puts a different label on it. There are different models that end up being exclusive to each label! The Kenmores are just as good as the others, but it depends on if you have a local dealer or not for the other two. Sometimes Kenmore is all a person has local. They use what they have I suppose. Or maybe they do not know about the Kenmore's being made by the same CO. I know it made me happy as the feet fit all 3 makes and I have a Janome and a Elna!