I bought a Babylock serger some years ago, and I absolutely love it because it does have the jet air threading. So simple and fast! Mine is an 8-thread and I opted for one with the coverlock stitch because it finishes the edges of tee shirts, etc. so professionally. I have never regretted paying for a more expensive machine up front because I did not want to have to go through the pain of threading one. I don't use it everyday, that's for sure, but I know it's there if I need it for a particular project. Never thought of using it to bind the edge of fabric before washing to prevent ravelling. Great idea! I can see where I am going to be using it a lot more! I also use mine when bath towels get too old to use; I cut them up, bind the edges with my serger, and use them for dish rags.