Your machine looks a lot like my Singer 411G. I've had mine for 40+ years, and as far as I'm concerned, it's worth having it repaired. I had a problem with mine recently, and took it in for the second time in 40+ years. I thought it was a gear problem, but finally it was some kind of spring. Cost less than $100 Can. for the repair and a good maintenance.
These are great machines, and I would suggest you think carefully before disposing of it.
I have two Jukis, one mechanical and one computerized, but I still use my Singer a lot.