Pat Obrien-
How do you know you will want to fly past 55 when you get there? That is a big price to pay just to have the choice. Furthermore, there is compound interest to consider with the money we would give up. 200k/yr from 55-65 only has a short time to earn on itself. An extra 100k at age 30 or 40 would have another 25 and 15 years respectively versus 10. Besides that, not all of us are trying to fund our retirements from our salary alone. Many have side businesses and could use CoS99 pay for capital.