I find that I turned into somewhat of a scavenger - I look everywhere - garage sales, pawn shops, etc. And by the way - several times on eBay. Have not found it a gamble yet, provided you use common sense and aks a lot of questions.
Having said that... the KEH price list - WOW! It is true - many a time it will actually beat eBay. If I needed a camera tomorrow, I would talk to them for sure. As it is - I make long range plans and sit in ambush for an amazing deal. Usually, it comes along!