Like others....the vintage ones will last longer than most peoples lifetimes. The newer ones...not so much. Most sewing machines are actually "sewing computers" so I think the life span is somewhat similar to regular computers. Maybe a bit longer Manufacturers will stop making the computer boards after a period of years and new parts will no longer be available. That is a good question to ask the repair tech for the brand you are considering buying. But, bells and whistles are developed and come out all the time. I wish I had held on to some of more simple machines I had years ago...cuz..they are great to have as a backup, travel, take to class, or even everyday sewing and quilting machine. I like have one fancy machine though...for those fun things like doing embroidery or fancy stitching on a bag or wall hanging.