Remember Mr. Cool, you don't have to bet every game, your biggest advantage is that you can pass.
I know you don't think there is a such thing as an advantage, and that it's all random and impossible, but handicappers eventually, if they work hard enough and track why they make their bets, will eventually find certain types of plays that will hit more often than others.
They can pass on the others, and spot bet what they like.
If you are indecisive or switching you choice, even once, it's probably best to pass.
One thing I've noticed, I don't think sporting events are going away anytime soon, there will always be another game.