I have a Bernina 440 with a BRS when I wanted to start quilting my own quilts. It replaced my very nice Husqvarna, but that is now at my summer place which I use for piecing and making clothing when I'm not golfing
I have a serger for clothing and many times I use it to sew the backing pieces together. It creates a nice seam while triming the selvage edge elimenating the step of cutting it off as it does it while sewing the seam. Then after learning the free motion quilting with the Bernina 440 and BRS on small baby quilts and doing one large bed size quilt I realized I really like the quilting process ( and pieceing my own quilts) and felt that if I sent out the quilt out for quilting it was not "mine" anymore. So I never had anyone else quilt for me and started having tops pile up. I started investigating the LA's and finally bought one and never been happier. It is so much fun. And now I quilt for QOV. Anyway, that's is why I have four. Oh, and I did buy a blind hemmer off ebay. Don't use it much and probably should give that one up.