There are around 800 characters in the entire game, and to get a voice actor for every single character, with possibly an average of 50 lines, such that each character takes 1 hour to record, and another 1 or 2 more hours to rehearse might mean that Bethesda must have spent (500 voice actors) x (100 dollars per hour) x (3 hours) = $1500000 just for voice acting.
Isn't $1.5 million a bit too much for just the voice acting alone?
Edit: Sorry, I calculated wrongly. (800 characters) x (100 dollars per hour) x (3 hours) = $240000 not 2.4 million. Oh well, I scored only 405 / 800 for my SAT Math, I suck at calculating. Why didn't anyone spot this after 5 pages?