I think your being overly optimistic on your average return over the next 30 years. Not saying its impossible, but not a high probability. I would use 5-6 percent in your calculators. Don't forget also in 30 years at 3% annual inflation your money will be worth roughly 2.5 times less than it is today. I'm maxing my personal contribution out and am 70% likely will be around 6 mil at the end of my 33.5 year career. Thats only 2.4 mil in todays dollars. Better to be overly prepared than under prepared. Especially when we don't have the ability to work longer if we need to.