The Mets have introduced a Citi Field Opener Pack that guarantees you seats to the Citi Field opener against The Padres on April 13. The catch is that you have to buy tickets to at least four other games in April and May. Still, if you're dying to go to OD and don't want to pay StubHub prices, this might be a decent option for you.
Citi Field Opening Day Ticket Pack
By Eric Simon