Yeah we all know that naruto will always*about naruto but if you think of the facts it seems that sasuke carries a similar importance. he is the co star of the show and game. Everyone waits for that last battle between naruto and sasuke. The show basiclly revolves around him. naruto looks for sasuke . he gets stronger because of sasuke. he pushes his self to find sasuke.
Well ofcourse, just don't get it mixed up... Sasuke is there to give Naruto a purpose to become stronger ( exept become hokage ), but the only reason* u need to know what he does, is to show how strong Naruto will have to be... Although u are right , Sasuke is The most important character exept for Naruto... So, i guess it's more then normal to see him so much; especially seeing as his life has been much more turbulent than Narutos these last episodes... ( although they both lost someone....)