Could be because slots are much fast paced? And there is no need to stressed our selves here but just start smashing the buttons. Unlike to sports that we will try to analyze in hopes of increasing our chances and if we lose, we think what we did is not worth it. Another reason would be is because many slot players always bet minimal amounts because they know how brutal this game was and then higher multiplier just doesn't come easily. I think 10x isn't that small and then if we bet small amounts the game seems to be less rigged. Sports betting on the other hand is slow-paced and then many thinks it is much guaranteed, so they bet a little higher, although it is not as centralized as the slots for the manipulation to occur that often.