That's the "wrong" approach, IMO, unless there are multiple jackpots of comparable sizes to their odds of winning. I put wrong in quotes since it is just an opinion.
Any amount of money I'm willing to play will be played on one game, and just one game on the rare occasion in which there is a nice jackpot. Then again my lottery play is very different than most on here. I don't play for months at a time, and then on one night when the Jersey Cash 5 grows over 800K, I play between 10 and 50 dollars. I then go for months without playing at a time as long as the Jackpot was hit by someone. I literally play 1 line on record breaking jackpots and about 30 the few times the Cash 5 gets huge, keeping my expenses really low, and I pretty much never go out of my way to play.
EG: I'd much rather play 20 dollars on a 1.2 million Jersey Cash 5 Jackpot than 10 dollars on that and 10 dollars on a 200 million dollar MM jackpot.
Even though winning 200 million would vastly change my life in, it's much, much more likely for me to win the Cash 5, which would still be a very large windfall for me. And I'd rather maximize my chances at that game, even though the MM is also high - especially when the Cash 5 is higher compared to it's odds than the MM is in this situation.