Ebay is decent. Not as cheap as it used to be, probably due to influx of new locksport folks, but still decent especially if you're looking for basic locks like

Ebay is decent. Not as cheap as it used to be, probably due to influx of new locksport folks, but still decent especially if you're looking for basic locks like a Master 3 or Kwikset. Lots of people swear by Facebook Marketplace but I just hate giving over even more info to FB. OfferUp can be good, very hit or miss, and Craigslist can be good too - even more hit or miss. I had a CL search running for over 6 months and finally got a worthwhile hit on some local locks yesterday, which was nice. If you know some property managers, handymen, or property owners, lots of times you can get old locks very cheap or free just by asking.