no clue how the lottery works in usa but in germany, it's better to play with a lower jackpot because double the jackpot means three times more players or so and if you just win a smaller amount with only 4 or 5 right numbers instead of 6 you need for the jackpot you will win a bigger amount with a smaller jackpot.
that's the reason why i would only play with a low jackpot but i never play because it's money wasting if you do it like 30 years. but higher jackpot means more money wasting because 3x as much people would win the amount for small prices on average (but the smaller prices wouldn't increase 3x on that day)
and if would win the jackpot when the jackpot would be small i doubt that i would think "ohh damn only few millions" first of all i wouldn't have won with the same numbers with a higher jackpot few weeks later and then i really don't understand why people hope to win 30million but don't care to win 5 million^^