There are no unique skills in slot games, slots are purely about luck. I think you misinterpreted what i typed, i told the OP that if he plays slots with the main intention of profit, then it's better to get out of slots, there are many bets that can use the main reason for profit, just like sports betting which requires strategy & a little analysis .
Well sport betting isn't exempted from from being a game of luck. All gambling gambling games are based on luck, because if truly strategy and analysis is what guarantees wining, then gambling could also be seen as an occupation without anyone kicking against it. The reason they the word Favour to win a match or competition is because, there is still a possibility that the opponent could end up becoming the winning, but based on stats the favourite team might be on good form or during their last meeting they beat the opponent. Sports betting is my best gambling game, because it makes you think and make analysis, which might seem as though we are in charge or bear all the credits if paraventure the won the bet.