I absolutely get your point, don't get me wrong. With my statement, I was mostly referring to the public who claim they'll wait to buy the game until is released on another platform (Steam) or gets a discount. If all these numbers we are discussing on this thread are mostly from the "mainstream" audience, that left me wondering how many "hardcore" fellas will ACTUALLY wait for the game to be released on Steam and buy it then, how many will actually stick to their words and comparate numbers. Probably not a lot, since you mention that this "core" gamers also get their games from EGS, proving to be the majority of sales at the end of the day.
We're just now approaching the point at which some former EGS exclusives will start appearing on Steam so we'll get some indication soon enough. It will be an interesting next few months for sure.