It appears boat hunting is no easy task!
But Jeff's detailed reply certainly has shed a lot of light on the subject and he sure knows his stuff, it all about experience.
One thing i have already realized looking at so many boats in the last year is how well the boat has been kept up rather than what model it is.
Most boats i have seen seem to be neglected, at least in $20k and under category, since they are older boats i guess and people just forget they even own them after a while ...
And the nice ones sell very quickly!