I briefly considered it too. But just keep the perspective that it's just a game, and there is no finish line. There never will be. Play your characters, level them up the way you find most enjoyable.
Hitting 31 should be the main goal, but that could be made much easier with Xur's visit tomorrow. We shall see.
Bungie wants you all to play this game forever.....
or until Destiny 2 comes out