Same as other media (Score 2, Insightful)

Look what happened to music when it was popularised. Or movies. Or television, newspapers, radio... When the general population gains interest in something, the market has a tendency to pander to the lowest common denominator. That hasn't meant no more "hardcore" movies or tunes are being made. In the games industry, we get casual gaming instead of Britney or your feel-good rom-com. There will always be fewer people willing to put in time, effort and thought into their entertainment (note that this is not the same as being "addicted"). These few will always be on the fringe of the market. Further, "hardcore" artists, regardless of their chosen media, will always seek to create with integrity, without compromising their vision for the sake of the mass market.