Interesting question, and interesting points of view. I invest all money from poker to my projects, starting from
freerolls and withdrawing as soon as I hit a hundred or couple, not building any bankrolls like I've used to. Playing poker while drawing/programming things for my project and while my machines work, have to do something while the CNC machine works for 10+ hours, and poker is one of the solutions to spend the time with profit, it's not bothering me when I do 3 things all together, observe cameras installed in the boxes where the machines stand, draw new 3d models and convert them to g-code...
I see a way to become a millionaire and when I'll have my business running well, without my participation, then I'll be playing only live tournaments. I have played live for several years and find it much interesting and fair game, 20+ books of psychology helped me to see a better picture of live poker. Can't see such picture during online games... Online games are stupid, open 4-12 tourneys and wait for JJ+
hands, and that's it. I let other players play their mind games of
bluff-
tells-
odds and such, during online games I'm a raising machine, always with a premium hand. Too busy to play trash hands.
And actually being a millionaire I can open a poker club in my city and run it like a boss, license cost little less than 50K per year and 2% rake from 1 cash table at low stakes is not less than 100euro per day, so it's a good profit, can even host some freeroll once a week for the members.
And another thing that millionaire club has is a option to purchase small types of business. Both real or virtual. Having several small real or virtual stores is always a good option. You can always use part of the profit to play poker if you want to, or to gather money and invest into some new business.
What I'm trying to say, is so called diversification. Money by itself is nothing, you don't eat them, you don't wear them, you're not fueling your car with money. Money as pieces of paper or numbers at bank account are useless... In business things can be split into two parts: actives and passives... Actives = things that generate profit, Passives = things that make you lose your money. Expensive car, which is not a limited edition and has dropping value is a passive, cheap car that works as a delivery car for your pizza restaurant is a active, cause one of these cars gives your profit, other is not. So if you're thinking about playing poker with several millions as your
bankroll of "dead" money then it's not a good solution... Investing money into some actives and playing poker with profit is a good solution.