I lucked out and managed to make it beyond regular retirement age. I have to emphasize that after retiring from IBM a year ago I have basked in the luxury of no stress, actual family time, relaxing outdoor activities, museum visits, realization that a job doesn't define me, etc. It's no joke. I wish I hadn't waited so long.
To those who can't quite swing it yet, make IBM secondary and spruce up the resume and make your full time job a search for something better.