[skohan]

Long term, Casinos absolutely have odds slanted toward the house. With the exception of a very few games, like blackjack, which can be effectively gamed, a gambler will statistically be guaranteed to go broke as the number of games approaches infinity.

[sokoloff]

That’s true of pit and slots games, but there are people who make a living playing poker in casinos. (It’s a player-vs-player hosted game with the casino taking a rake or seat charge rather than a player-vs-house game.)

[paxys]

Some difference in the mechanics, but the overall concept is the same. An individual player might be able to win money in poker (with some combination of luck and skill), but a group of players will always lose to the house.

[GavinMcG]

Poker isn't played as a group. The "overall concept" is whether an individual player can profit over the long run, and in poker but not (say) roulette, the answer is yes.

Your approach reminded me of a joke:

Three statisticians go deer hunting with bows and arrows. They spot a big buck and take aim. One shoots and his arrow flies off three meters to the right. The second shoots and his arrow flies off three meters to the left. The third statistician jumps up and down, yelling "We got him! We got him!"