The first CEO in 2010 was the same weekend as MLG Columbus so we didn't get much OoS for Brawl (Kadaj, Chu, Candy), but Melee has quite a few OoS players come through including Darkrain, PP, Tope, Cyrain, Husband, and Chu as well. With that, CEO 2011 had a lot to build on and Jebailey put a lot of effort to give the Smash community a legit major.
Lots of things deterred that from happening such as Smashboards promoting another event which took place the same weekend despite CEO 2011 having the dates first and also due to players IN STATE deciding not to go due to door fee DESPITE paying less than players who entered any other game besides Smash.
After doing so much and getting little in return, it's no surprise Smash altogether would never be apart of CEO again.