The jackpot odds are 1 in 175,223,510, so the EV of the lump sum payment is $1.87. The smaller prizes bump that to about $2.21, which looks good on paper for a $2 ticket. But the ~42% state and federal income taxes in Minnesota bring the net value down to about $1.28, even before estimating the probability of a split prize.
Unless, of course, you could put your lottery tickets into your IRA. :)
