Reminds me of a boss of mine couple yrs ago...he was 70+ and probably had 5-10m in bank in addition to his salary and 3 retirement checks.. I asked him when he planned to retire and he said "I dont think I can afford to retire".That’s nice of you to decide how much money is enough for BU.
I expect BU to be here for many years and he will be very comfortable when he is done....