In contrast, in gambling, luckiness is a biggest factor to decide your bet result, win or lose. You can be very experienced in gambling but if you are out of luck, you can not win with your bet.
The major factor is luck in the gambling field where if you don't have knowledge of the game or skills also you can win huge with small bets also because luck favours you at that time.In luck based slot you don't need any experience at all as you place bet and wait for results.We come across many cases where small bets turned into big win with only you being lucky.