I can understand if someone is losing $300 a month playing the lottery why they might be better off saving the money, but betting that savings on an even money wager just doesn't make any sense. It looks like the reason for betting the $300 in weekly installments on PB and MM in the first place was to win millions or even $10,000. Betting $300 to win $300 isn't even in the same ballpark with betting $300 several times to win millions.
People play lottery games because of the payoff odd and very few actually look at their odds against winning. With PB, a player would have to spend $64 a drawing before they can expect to win anything and that "win" will probably be $4 or $7.
Unless you're a professional poker player, play the sports books, or maybe betting on the ponies, casino gambling and lottery games should be considered entertainment. And winning or losing $300 in a minute or less playing one hand of blackjack is not what I call being entertained. The players spending $12 a week playing two tickets on MM and PB in each drawing can easily justify that as part of their yearly entertainment expense.
There will always be someone who will say anything somebody else spends their money on is "a waste of money". I'm not saying making a once a month $300 blackjack bet is a waste of money; just saying betting $300 a month on an average $10 daily installment to win millions is on the opposite side of the gambling spectrum compared to trying to win even money on a one time bet.