Is there any chance that people will stop buying over the counter vitamins?

I am a fervent believer that people who eat a balanced, healthy diet ingest enough vitamins daily. Yet, if you go to any supermarket or pharmacy, you will find aisles full of various vitamins and supplements. There has never been any data supporting their use, and an accumulating amount of data actually suggests that some vitamins, taken in high doses, may be dangerous.

So, is there any chance that the vitamin/supplement market will disappear? Perhaps the market downturn will force people to reevaluate their spending habits, and persuade them to ditch their vitamin habits?