I kinda get poker, blackjack, etc. as there's at least a human element to it.
But slots...oh boy. They're predetermined and if it goes off script, you don't actually win, sorry. In that case, I think the gamification of it should be outlawed altogether as misleading consumers. How many people would use slots if it were just putting a dollar in the slot, then a screen saying 'lose' and that's that? Because that's exactly what's happening behind the scenes.