So true, that's one of the problem with gamblers when the greediness strikes you wouldn't care about how much you will lose. I still can't believe he just wasted that huge amount of bitcoin, we should have self control and discipline in gambling because it tends to be very addicting.
It is a real gamble to wage a bet of fifty bitcoin in a single bet and he was really unlucky to have lost it because it was a real upset and i never expected the opponent to win the game,there are many gamblers who wage a huge amount of money because these high rollers might have earned a huge amount of coins when the mining difficulty was low or is a miner.
Betting with that huge amount is like a suicide mission without thinking of what if. The OP must have lost his self control and maybe it urges him to bet at that amount thinking that he could have win it with just a one shot. But things always go right as what you have been planning, he should have a back up plan when things gets worst. Making a move without thinking will lead you to your defeat, that's why we must always think carefully when doing something that is very crucial specially with our financial needs.