For how long are good deals listed?

[Marc Nicolàs Mariano]

For how long are usually good deals listed?

Meaning, is it normal to find good deals that have been listed for 30-60 days? Or they good ones are usually gone much sooner?

sometimes I find good houses that have been published for over 2 months and I wonder whether if those are good deals or that perhaps not because when you go to see the house you might find defected that holds you off.

what is your experience finding good deals?