Hrock,
About 7 years ago, you said you didn't have a job, and then got a job working in loss prevention. Either you've been doing excellent day trading, or you are storytelling. Saving 70-80% of your income, would put you in making 100k+ just to get by. 100k = 60k after all taxes and deductions. Saving 70-80% would put you at spending 15k a year and saving 45k. Can people really live with 15k cash? I think a single person can escape it in the fox valley.
Pretty good job...if you aren't story telling... The only way I can see this happening is if you took significant risk in the market and did not value invest...