Unfortunately, this plan has a few fatal flaws. First, most drawings do not have a high enough jackpot to make this worthwhile. Second, you would be violating the rules on drawing randomly. By purchasing all tickets, you're maximizing the chance of sharing the winning number because you've matched every other ticket holder. More people play when the jackpot is higher, so you're matching many more people. Winning big with the powerball depends on matching as few people as possible, while still matching the winning numbers.