Expectation is the root of all heartache.
This is also applicable to gambling. All of us aim to win but if we expect too much where in we fall for too much gambling just because of high expectations of winning, we will end up being broken financially and emotionally. We should always keep in mind that there's no guarantee of being victorious in gambling and we could only win by chances and luck.
I agree with you. The expectation and hope of big winnings is one of the biggest problems of compulsive gambling. The gambler dreams of winning at the casino, but what he doesn't realise is that there are many like him, all dreaming of the same thing. But there is no way for everyone to win. There is not enough money in the world to make every gambler's dream come true.