briefly: it's no longer as fulfilling as it very much used to be; there are a dozen things I'm more inclined to do with the precious few hours I have each week to devote to hobbies; leaving now would no longer shake the society as it probably would have had I left two or three years ago.
Hi Asaf. I salute you that you were brave enough to take that step. Sometimes a person feels that his order of priorities must change, but it's difficult to shift away from the old patterns. If it matters to you, I think you made the right decision. With the way your life has changed lately, it looks inevitable.