Poker
Poker believe it or not is honestly a game of skill. Yes you need good cards to win but
good poker players can win with any two cards if they really know how to play. I am referring specifically to texas holdem. If you play limit texas holdem like 3-6 you have to play solid starting cards period in order to really win and fold when they do not fit with the board because many 3-6 limit players will call with a crappy hand hoping to suck out and many will call to the river because you can not bet HIGH enough to get them out.
No limit on the other hand is a completely diff game a real seasoned player can play a wide variety of hands and win because he knows when to Bet, how much to bet, when to fold ect... especially when you have the choice to go all in at times or make large bets. Not many are willing to risk all there money or large chuncks of their money on a long shot in poker and the ones who are willing are the ones you want to play with you.
Poker always has action and requires great skill and patience along with the ability to read people in order to be successful over the long haul.
Pool sucks for making big scores or good money on a regular basis because everone NOW days especially, are very smart and tight with their doe,
unless they have or think they have the nuts.
So if you are a good pool player and a good poker player,
poker will win in the long run becasue of the action and money to be made. I have taken 100 dollars to a no limit game more times than I can remember and have turned it in to 2-3 thousand dollars in a matter of 24 hours, try that in pool.
So it should be obvious why poker is loved by many pool players. But make sure you do not have leaks in your bankroll, like the occasional trip to the strip club, playing roulette, blackjack, video poker, slots, drugs, alcohol. The casinos have all sucker games except for poker and are the bread and butter for the casinos.
You should look at the known statistics for winners out of 100 that walk into a casino, its somewhere around 1-3 percent that walk out with more than they came in with

Unless they are good poker players where you are pitted against others and not neccessarily against the casino.