If it is just courage, $50 isn't that much to bet which I think why many people would agree of doing so. However, I'm not into probability games or game oc chances alone so I guess I won't do it. Nit because someone managed to win with such amount, it will be already for all of us to also do so. For sure it is not a single bet, therefore that won't be a single amount. Indeed the jackpot is so big and tempting however, I'll choose to engage it with sports betting in particular with NBA, 'coz I know to myself that I will enjoy it more. Odds aren't that big with sportsbetting especially with single bets but I'm fine with that and is not into that much of risk taking to have big returns. Winning a few amount while I enjoy doing that thing, is already enough for me. Also, at least my $50 will last for an hour or more than with few seconds in spin, kidding aside.
If I know that I will win the jackpot or $42 million in a bet worth $50? Of course I will bet and take the risk, but that's not how gambling works we can determine when will we win or if we will win, gambling is all about luck and probability, maybe that person who won a huge amount of money from a small bet has the luck and hit the probability to win. Well, he is very luck but as we know we can't all have the same luck in gambling, this might trigger a lot of gamblers to gamble more and hope to win even though they will bet with a small amount but what if you frequently bet then if we sum it a gamble still waste a lot of money. I personally only bet will small or fair amount so the damage will not be too much, I don't hope to earn a lot or hit a jackpot but I'm open if I will win.
You are not taking any risk if you knew that you will win the jackpot. On the same extent, $50 is nothing with $42 million in the first place, so I guess there's nothing much to be surprised of, if you would be willing to do it also.It is simply a 1:1m probability or even higher; nothing's earned easily 'coz if that's so, many gamblers should be rich by now.