We talk a lot about ads that are incorrect. To me it is ads from reputable dealers that are deceiving that hurts.
Take a look at this ad:
http:// (Offsite URL shortening not allowed-9) /18MLLUy
The coin being advertised is generally not sold in that context but in a totally different context. Even a person like me who is knowledgeable about the differences in this particular type of coins was fooled for 30 secs for the following type of coin also from the same dealer.
http:// (Offsite URL shortening not allowed-9) /1haCurK
You be the judge