Francis, you're 57 with 80x income in savings. I'm also 57 and just FIREd with 6x income in savings. Less than 10% of your stash, but enough to last until my $3k per month pensions kick in.
So why do you stay? You don't need the money! Are you a martyr-type personality? Or extreme protestant work-ethic? Go for the sports car and the wine and the freedom you so obviously enjoy. I did :)