Numbers are wrong. I guess VgChartz decided to directly ignore the free $5 off pre-order for Gears of War when purchasing Bulletstorm that was running ALL WEEK. I usually trust VgChartz numbers but the pre-order numbers are way off. Gears should have seen a fairly large increase and yet it only does around what its been doing the whole time? Sorry your numbers are wrong. I work for Gamestop and know we pre-ordered more than that.
http://www.gamestop.com/xbox-360/games/bulletstorm-epic-edition/77658
http://www.gamestop.com/xbox-360/games/gears-of-war-3/77663