in the beginning of the movie Ralph shows us his home. Which is a dump made up of all the bricks collected from him destroying the building as part of the game. The same building that Felix fixes as part of the game as well.

Throughout the movie though, we see Felix fixing things by hammering the parts of whatever is broken and they magically rearrange into the correct item. For example, in order for Felix to fix the race car Ralph gathers up all the spare parts in a trash can for Felix to fix. Or to fix the finish line they arrange the broken parts to resemble the finished product and Felix starts hammering them into place.

So wouldn't that mean that all those bricks would be reused to fix the building during the game, hence no creating a mountain of bricks for Ralph to live in?