Which is all well and good for bags and the alike, but @fizzy.bleach 's wife is likely to need stretch stitches, buttonholes and any other stitch that a modern machine is capable of.
Besides, a lot of vintage machines can tolerate using heavier threads and thicker materials but they weren’t designed for it. I find the fashion of saying “semi industrial” on ebay listings quite annoying.
Very few machines are actually medium duty let alone heavy duty.
Which is all well and good for bags and the alike, but @fizzy.bleach 's wife is likely to need stretch stitches, buttonholes and any other stitch that a modern machine is capable of.