I would like to know why people are trusting their luck more in sports gambling compared to other type of games.
Personally, I put bigger bet on sports because I believe I have a little skills that would give me a better chance of winning, but I'm not really serious with sports gambling.
Same reasons as yours if you are very familiar in the sports where you are placing bets, you will develop a skill that can give you comparisons why you think the one team or a fighter is better than the other especially if you've watched and studied both protagonists, much better than a dice game where you need a lot of luck.