Words of Wisdom has a valid concern. What he is saying is that people will buy games and if they buy enough crappy games, then they have a formed opinion. While it may not prove true, it is true to them because of their experience with the poor games they bought.
Say some parents buy a Wii for Christmas, they pickup High School Musical, Happy Feet, Cars, and several other movie cross-over games. These games usually are not nearly as good as they could be. They are missing something and someone can usually tell.
The problem with the fear is that they could just go another game. If they don't like that they get another game, if they don't like that... ad infinitum, up to the point where they can't get anymore due to lack of resources. Eventually they would have a good chance of picking up a good game every now and then.
So to refresh it is a valid concern, but is not all that common a reality.
