Chris Guidance much appreciated , I hope I am tending toward example 3 , though currently to a modest extent. So far at least have only bought coins I have targeted and done a little bit of research on. The tricky bit for me comes in grading a coin.Went to the last York show as iIwas after a 1746 LIMA halfcrown. Found three examples all of which looked very similar to my eye yet they had a significant price range . Joe