I find it annoying that the new machines can't handle a few years of sewing. My two vintage Singers one over 50 years and one over 65 years old, used hard and put up wet when I got them and I have never had to replace anything but the needle. I know extra features may be delicate but the tension and thread guides should be the last things to wear out on a machine. I test sewed on the brand new Brother machine Saturday. The dealer said it had to brought in to be serviced after so many stitches or it will mess up and cost more to fix.