Gambling is for the weak, it's for those who like to make quick profit. I'd only invest.
Surely investing is a gamble? Sure, you can make educated predictions and guesses, but you can do that with sports and other bets too.
Yes it is a gamble, but a low risk gamble. Low risk, low return unlike manual gambling which can provide high returns but high amounts of risk. They can both lead to rags OR riches!