[Insanity]

It depends what stage in your career you are in, generally. Job hopping early on is a good way to raise your salary and get a wide range of experience. For more senior positions, where your projects are measured in months to years instead of sprints, staying longer is a good thing (imo). But either way, a decade is longer than I have stayed in any place - and had both regret for leaving a former employer _and_ regret for not having done so sooner. No silver bullet answer to that question :)