Personally, I'm not likely to waste any time/gas on a $10 banger which was $80 at Wally World when it originally sold 3 years ago.
OTOH, I don't waste time/gas on any $1000 bikes on CL, either. I tend to be looking for something in particular before I buy it, so I'm usually hunting for something of a specific size/make/vintage. Best for me is if it's a frame, or a basketcase complete with a good frame, so I can creepily have my way with it... bikes/framesets I've bought on CL tend to range from $50 to $200, asking price. I tend to NOT haggle, but I know I'm definitely in the minority there.
OTOH, I don't waste time/gas on any $1000 bikes on CL, either. I tend to be looking for something in particular before I buy it, so I'm usually hunting for something of a specific size/make/vintage. Best for me is if it's a frame, or a basketcase complete with a good frame, so I can creepily have my way with it... bikes/framesets I've bought on CL tend to range from $50 to $200, asking price. I tend to NOT haggle, but I know I'm definitely in the minority there.