I love my sewing machine. I inherited it from my mother in law and remember when she sewed me maternity clothes using it. She taught me to sew with it. But now I think I have worn it out and it is not running well. It seems to be seizing up and skipping stitches. It is around 40 years old.I am going to buy a new machine this week and I wonder what everyone prefers. I am looking at a Bernina 350 and considering a 530. The Bernina dealer is a friend. What is everyone's opinion about sewing machines and the cost difference between getting a Bernina or a Singer? The difference between the 350 and the 530 is $800 but the 530 can have a stitch regulator added, a bigger motor, and has more stitches.