that wasn't quite what I was saying. That's the hypothetical argument based on Clukos's position; the real argument is that AAA games would still exist even if platform exclusivity didn't. The argument that platform exclusivity funds AAA title is a fallacy - games that sell funds AAA development. If there's an install base of machines that can play something like Uncharted, and gamers who want to play games like Uncharted, games like Uncharted would get made and sell (see cross platform Tomb Raider reboot for example). Software is a business that supplies to the consumer demand. The consumer demand is for games, not for games that only run on a particular brand of device.
I disagree to some degree. Because the funding for console exclusives isn't solely incentivized by the potential for profit on sales of that game it allows for AAA-level funding to go to games that would otherwise be determined to be too risky or not as lucrative of an investment as creating a game similar to what has already proven to be popular. I believe that there are many games that exist or exist in more fully realized form because platform holders as publishers have different criteria for what is a worthwhile investment than independent publishers do.