All the computerized machines (except the first ones ) are shielded from magnetic waves.I was told by a Bernina tech it would take a powerful magnet not found in quilting tools to cause any concern.
I know the price seems like sticker shock. But after thinking about it, a nice quilt kit, or new fabric to make a queen size quilt, plus the quilting will be about the same, maybe less. I use my lighted cutting mat so much I would buy another and I thought I would be wasting my money on it. I need a magnetic lighted cutting mat . i'll wait for that.