Alongside gaming, this is also particularly visible in the Hollywood FX/motion-graphics/design studios in Los Angeles. They eagerly eat their own young as long as the talent is there. And a with plethora of excellent art colleges right down the street continually pumping out very capable and ready-to-work talent, it's a vicious cycle. But, to be fair, the kids are living out their dreams through their art. So, from their perspective, it's worth it (until they want to start a family).