I haven't bet on sports in a long time. I now much prefer casino games like slots, which don't have a win percentage, so we can't gauge how much we'll win if our predictions are correct. Essentially, if you stop when you're winning, that's your win amount.
But I don't really care about the outcome; I prefer the process, whether it's a pleasant or unpleasant experience. It really gets my adrenaline pumping and trains my self-control.