And it certainly doesn’t hurt their effort that CenturyLink Field is always full.
Seahawks owner Paul Allen just tweeted that all Seahawks regular season home games were now sold out, other than a few handicapped-accessible seats and a few for two preseason games.
All @Seahawks  reg season hm games now completely sold out excpt for a limited number of Wheelchair only locations, some pre-season tix left.
— Paul Allen (@PaulGAllen) July 23, 2013 
Source: Darin Gantt, NBC Sports Pro Football Talk