Personally, my feeling is that if one has the disposable income to buy games, it is a small additional step to acquire a decent gaming PC with at least an i5 and a mid level discrete card, even if you have to save up for a while or delay buying some games until they go on sale cheap on Steam.
And that's the problem with igpus... Until they're fast enough to, you know, play a game on, buying one (or telling people to buy one) based on gaming performance is a little silly. There are stupid low quality games that will run on literally anything less than 5 years old, then there are things that none of these igpus play worth mentioning, but we seem to have a lot of people jumping through some mental hoops pointing out how great they are.
AMD has a decent gpu division other than multi-gpu stuttering issues, and on the extreme low end, have a part that I'd not wish on anyone who wanted to play a game
http://www.anandtech.com/bench/Product/535 . However, paste something even slower on a cpu, and some folks would have you think it is the greatest thing since sliced bread.
Sorry, an anemic (though, obviously, less anemic than Intel's) igpu on a mediocre cpu doesn't suddenly make it worth buying. If you don't care about playing games, you end up buying the other brand. If you do care about games, you end up buying the other brand and a discrete gpu (either amd or nvidia).
Maybe there is some silly hipster movement for ultra-low resolution, ultra-low detail gaming that I don't know about?