I am wondering what advantage a coverstitch machine would be to own. They seem to be all the rage nowadays. I have a serger and a couple of sewing machines that seem to fulfill all my needs to produce garments for myself without too many problems. Just what does a coverstitch machine do, anyway? I realise that it produces a covverstitch, but what is that? I realise that some dedicated machines do things faster than a comparable multi-purpose machine might, but unless you are sewing for a business, or where speed is of the essence, what advantage is there in such a machine. I guess I am asking so that I can rationalize a new toy purchase, depending on the responses. Thanks in advance.
John