It's waaay over done. Actually I think it peaked a year or two ago and it's been in decline for awhile. Reality Kings and Bang Bros. don't have many anal scenes and they do just fine.
I think a lot of guys like anal from watching porn, but when they try it in their personal life it's not that great. I have tried it a few times with different girls and I no longer want to see it, in movies or real life. We haven't even touched on how many potential risks the woman AND the man face.