The play has become really stagnant these past few rotations. A simple raise preflop is generally more than enough to take down the blinds. All of the players in the tournament are sitting with decent stacks and don't feel that they are in trouble. In fact, spirits around the table seem high with jokes being cracked and regular conversation going on between the players.
There are also no antes in the structure of the tournament to speed up the play, another reason why the players may not be fighting for chips as much.