All true; just general sweeping back of napkin math for demonstrative purposes. You CAN certainly make a business out of it if you really do try and scale-- we've touched on that upthread and as you pointed out the above strategy works quite well and I believe is a point where
DVC is looking to actively curtail now.
Yes, stock market can be MUCH higher (and lower). Last year SP500 is over 20% up. Last ten years 11% Last 20 9% -- so pretty good and consistent if in it for the long run by doing NOTHING aside investing it and not touching it.