Nov. 23, 2012: Michael Arrington, left, buys a Powerball ticket from cashier Lee Heilig, right, at a DeliMart convenience store in Iowa City, Iowa. (AP)
The current Powerball jackpot is seen on a computer screen in Georgia. (AP)
A vendor, left, receives money for a lottery purchase in New York. (AP)
A customer fills out a Powerball form at the Jayhawk Food Mart in Lawrence, Kan., Friday, Nov. 23, 2012. The jackpot for Powerball's weekend drawing has climbed to $325 million, the fourth-largest in the game's history. (AP Photo/Orlin Wagner)
Swollen by an estimated $289 million in tickets sold since Saturday's drawing yielded no winners, the jackpot has reached $550 million — $327 million for the cash option — for Wednesday night's drawing. It's the highest Powerball ever, and second only to March's $656 million Mega Millions prize among U.S. lottery jackpots. But would winning bring you happiness?