This is the thing that I wish more people inderstood. I don’t care how much you like your coworkers, the company you work for or any other consideration. If somebody else offers you considerably more money to do the same job, you’re probably moving on. Even if I am making enough money, somebody offers me more then I’m taking it.
In the words of Dwight Schrute “Look, I’m all about loyalty. In fact, I feel like part of what I’m being paid for here is my loyalty. But if there were somewhere else that valued loyalty more highly, I’m going wherever they value loyalty the most.”