Good on you if that's how it works, and I would say that's worth it, if all goes according to plan. But be aware that a lot of people have tried that strategy, and just end up working until age 65 and remembering how much of their 20s and 30s they wasted. Family, health, industry shakeups, change of priorities, and on and on. There are so many variables involved in trying to predict your distant future that sometimes it makes more sense to take care of the present, with an eye on the near-term.