Now, a game running at 30fps isn't a bad thing. In fact, a lot of people out there don't even know the difference between 30 and 60fps. But for those of you who can tell the difference and have seen 60fps, there's a huge difference. Although it depends on the game, a higher frame rate can give the game a smoother look and feel, and may even allow you to play the game better.
I love 60fps and hope to see all if not most next-gen games go up to that frame rate. But games that are staying at 30 make me worry. The reasoning isn't because I'm worried gameplay will be sluggish or slow, but because of the console recording capabilities. I've been recording games for about two years now and have experience with this kind of thing. A game that has the ability to run at 30 fps vs 60 makes a huge difference in the video quality, which is pretty important for not only the person streaming to their channel, but also to the developers and possibly even Sony or Microsoft. If a game's fps is all over the place, it's going to look obvious and all of those mentioned above may be criticized for it.
Continuing on, a game running at 60fps has the leg room to drop a few frames here and there and the player or viewer will hardly notice. But if a game running at 30fps has a frame drop, the player and viewer will most certainly notice. The reasoning is because at 30 fps, our eyes can just barely see the changes in the frames while objects on screen move and adjust. At 60, the movements and animation frames blend together and our eyes can't make out the changes so the game appears to run much smoother.
If the developers are still able to lock the frame rate at 30fps then it shouldn't be a problem. But, if you've played Dark Souls on a console, there are areas where the frame rate drops down to 15-20fps and it makes the game just horrible to play.
With the waters being pushed aside for the flood of indie developers to run through, I'm sure we'll see our fare share of unoptimized games. I fear that players are going to notice frame drops much easier and decide to set those games aside and play something that does feel good to play. But lets hope for the most part, games are able to run at 60fps as long as it doesn't hinder gameplay.
My point of all this is simply that I hope in the future, we see games run at the highest frame rate the games can run at to build more emersion. And with that comes the hope that Sony and Microsoft's streaming abilities aren't a hinderance to the players streaming or the viewer of that video in terms of video quality and smoothness of the fps.
Bonus: Here is a link to a site that allows you to actually see the difference between 15,30, and 60fps.