I think OM was saying that in her case the change was not merely for the sake of something different, but was a distinct improvement and a relief. But, of course, if "what works" for you is entirely satisfactory, then the elusive goal of what might possibly be even better, but might not be, has much less attraction. As OregonMouse is fond of saying: Hike Your Own Hike. Which translates as "do what works for you".