The New Jersey Lottery, among others, in early 2009 announced it would seek permission to sell Powerball tickets alongside Mega Millions. In October 2009, an agreement between Mega Millions and MUSL allowed all U.S. lotteries, including New Jersey's, to offer both games. On January 31, 2010, Mega Millions expanded to include the 23 MUSL members; as of that date, 35 jurisdictions were participating in Mega Millions. On the same day, 10 existing Mega Millions-participating lotteries began selling Powerball tickets. Ohio joined Powerball on April 16, 2010. On March 1, 2010, Montana became the first MUSL member to add Mega Millions after the cross-sell expansion. Nebraska became the 37th Mega Millions participating member on March 20, 2010, followed by Oregon as the 38th member on March 28, Arizona as the 39th member on April 18, and Maine as 40th Mega Millions participant on May 9, 2010. Colorado and South Dakota added Mega Millions on May 16, 2010, bringing the total to 42 jurisdictions.
Americans in the lowest fifth socioeconomic status group had the highest rate of lottery gambling (61%) and the highest mean level of days gambled in the past year (more than 26 days), the 2011 Journal of Gambling Studies research found. There were very few observed differences in lottery gambling for those in the three upper socioeconomic status groups — approximately 43% gambled on the lottery and the three upper groups averaged about 10 days of gambling on the lottery in the previous year of the study, a trend that was found in other countries with lotteries.
Another study looked at winners. In 2015, the Maine Department of Health and Human Services analyzed data from the Bureau of Alcohol and Beverage and Lottery Operations on individuals who won money in the state lottery. Some 4,865 winning tickets of $1,000 or more were cashed in by 3,685 individuals receiving state benefits over the previous five years, reaching $22 million in lottery jackpots of various sizes. So — unless they were an unusually lucky group of people — they likely spent far more than any other group on tickets.
When the Powerball jackpot is won, the next jackpot is guaranteed to be $40 million (annuity). If a jackpot is not won, the minimum rollover is $10 million. The cash in the jackpot pool is guaranteed to be the current value of the annuity. If revenue from ticket sales falls below expectations, game members must contribute additional funds to the jackpot pool to cover the shortage; the most likely scenario where this can occur is if the jackpot is won in consecutive drawings.
Presumably due to their experience with the Power Play option for Powerball, all 23 lotteries joining Mega Millions on January 31, 2010 immediately offered Megaplier to their players. The Megaplier continues to be drawn by Texas Lottery computers, as California does not offer the multiplier. Montana, offering Powerball before the expansion date, became the 24th lottery to offer the Megaplier, followed by Nebraska (the 25th), Oregon (the 26th), Arizona (as the 27th) and Maine (as the 28th lottery to offer the Megaplier option). After Colorado and South Dakota joined Mega Millions, this raised the number of lotteries offering the Megaplier to 37.
This method specifically has faced criticism recently from a number of lottery organizers such as Camelot, the UK National Lottery organizers who are not happy with companies “selling tickets” (selling bets on outcomes of their established lottery draws) for prices sometimes even cheaper than Camelot themselves sells their tickets. This legal and corporate dispute looks set to continue for the foreseeable future, in the mean time you can continue to buy Powerball tickets online, only now you are aware of the key differences between the two business models.