Tonight's Mega Millions jackpot has climbed to $420 million. This is the eighth largest in the lottery's history. Mega Millions can be played in 44 states, as well as D.C. and the US Virgin Islands. Illinois was one of the original group of states to add Mega Millions, to its game roster. The game began in 2002. With a starting jackpot of $40,000000, players can select their numbers in clever ways, or select a 'Quick Pick' where the numbers are chosen randomly. Many believe this option is more of a likely win. But the odds are more than 1:300,000,000. The question is, 'How much will you spend to win?'