My code of buying games:
I will only buy a game with a big price tag if it has some replay value and multiplayer, modable, active community, ect. If its all singleplayer with no replay value and primative deathmatch multiplayer with no way to mod the game I will not buy it.
I can only see buying this game just because it has the most overrated and easiest to play(table top) race in the game, the Space Marines.