because slot games only have a small chance of winning and the luck that gets there is very rare for getting the jackpot.
actually a Slot game for me is not completely there will be RTP. I mean when I spend $100 in one of the Slot games, sometimes the RTP doesn't work and only 5% returns I get. many times I'm like that but after that usually there will be a return + profit that is around 50%. And even more careless, sometimes gamblers, if they have benefited from Slots or got jackpots from Slots, they will continue to play with increased curiosity and dopamine in the brain.
and actually the way to spend money faster for me is in slot games but the opportunity to get big wins is also in slot games.
It's because you're not keep gamble for really long with your initial bankroll and in the same game, the RTP rate is expected if you gamble for long and not only for 100x wager, it might 1000x wager or more to calculate the right RTP. It's similar like you bet all of your bankroll in one spin, you might lose all of your money or you might get a lot of money, which make you're not care with the RTP rate.