On one hand, I'm getting older. On the other, my skills are getting better. The younger people I work with can't keep pace with me. And, my employers aren't unaware of the fact that it indeed is a zero-sum game, so my age (early 40ies) has never been an issue so far. I believe there're and will be many employers who look at nothing but what you bring to the table. As a businessman, you wouldn't be foolish enough to hire only noobs.