I paid $5 for mine. It resides at my church so I don't need to take a 301 back and forth. Sews very well, but not as good as a 301, IMO. Perfect condition - just over oiled.
You did well.
Congrats on your 404! Same family as the 401 slant needle machines but straight stitch only so no complicated setup to deal with. If it's as powerful as the 401A you'll love it.
Rodney