If you know anything about programming and 3d graphic modeling, that game is loaded with code and graphic tapestry mapping. All of which took a reather large team of designers and programmers many manhours to integrate a masterpiece. Now, how much do you think blizzard payed each team member? They now have to make a profit.
<font color=purple><b>An average human brain weights aprox. 3lbs., but a thought weights a load.</font color=purple></b>