Every place I've ever worked (to a greater or lesser extent). Every year I'm there "doing the same thing" the better and more productive I get at doing that thing. I also become harder to replace as the cost of training a new person up to my level becomes higher. Thus I'm worth more to the company and it's in their interest to make sure I stay another year, and paying me more is a fairly persuasive tool for achieving that.

If someone does the same thing exactly the same way year after year, they either have a trivial job, or aren't very good at learning. Assuming this isn't the case and, the cynical, baseline answer would be "the guys who know that you'll leave if they don't". The favourable answer would be "the guys who know that experience matters".

There's always, always a company out there's who will be willing to give you 5-10% extra, if only to screw up with their competition by taking their indispensable people.