I think the main complaint with higher level play is that there are fewer opportunities to leverage no matter how smart you are. Make no mistake, with the AI's bonuses at higher levels, we do have to find some leverage point. It seems like Firaxis is systematically nerfing viable strategies available to the player. Someone on the "balance" thread said it well... Follow the link, he was replying to yet another poster who enumerated the available leverage points and how they'd been hamstrung. Now, I'm not sure yet how this patch will all play out. There are just too many changes to integrate how they'll interact without actually testing it. However, Firaxis seems to be taking the tack that any identified infrastructure opportunity for the player is "bad". The problem I particularly have is that by "flattening" out the opportunity landscape we'll be forced to exploit still existing AI weaknesses, particularly tactical incompetence. (And emphasize that you must find some leverage point to exploit or the higher level bonuses are insurmountable.) I'd prefer some infrastructure opportunities so's I can "build" rather than "fight".