I love this thread...I have 5.
A Juki TL 98Q on an Inspira frame that I use for quilting, a Viking that I use for sewing, a White Superlock Serger, a Janome 300e for embroidery, and a $10 yard sale Kenmore that is used for emergencies. At this point in life, I would hate to live without any of them but would trade for younger models.