Is call of duty: world at war really worth my money or is it a boring and fast game with barely any levels?

i will tell you now, it is filled with modders and hackers. I get in a multiplayer game, THERE WILL BE some who either has god mode or floating, besides, barely anyone is online. Nazi zombies is entertaining, for a day. Once you've played the first map over and over again it gets old fast. So my answer, No it's not worth it, and definitely not fast.