Alright, I don't have the data nor time to research it now. But just try to check the pricing on EGS when a game was exclusive there AND after the exclusive deals run out AND the game is then sold on steam. Did the price increase? Or if that feels flawed (which I get it, maybe the dev has no intensive to change the price), try to get the average cost of those exclusive AAA games from other stores and compare it with average AAA games on steam. See how different it is.