Good point. Not every player at every limit looks at poker forums (thank god). Some have never heard of bankroll management and play it for the thrill of the gambol, why do you think they have high stakes roulette? People who can afford it will often want to take bigger risks because of the bigger payout. I'm sure some of the $25NL players here could outplay a lot of the 200NL players, its just the average skill level increaces with the limit.