I think more and more young talented developers choose to work for small cool companies or even attempt to start their own, instead of choosing to be a cog at a corporate giant. And this probably has the giants worried.

It's true that corporate experience is useful, but it can also cause depression and frustration, seeing your youth fleeting while you implement inconsequential features and fix trivial defects in a mammoth project you couldn't possibly be more emotionally detached from.

Get out as soon as it makes sense and not a moment later.