Hi, I have a Viking 6440, 38 years old, my mother's old machine (and a very good Viking tech in the Milwaukee area who has kept it running well for me). There are aftermarket parts for it if cams (I think Viking calls them stitch formers) cracked. I recommend having it tuned using stitch former A, which manages straight stitch and zig zag. I would unload my electronic Viking 1 before I'd get rid of this one. You do need to be committed to investing some $$ every couple of years for tuneup, and use regularly. Lubricants otherwise freeze.