I was going for the the Ps4 anyway, but I can't say I care much about getting 10 more minutes. I don't see myself recording much other than random silly moments in multiplayer games or weird experiments in Just Cause 3 (if that exists.) Recording is a neat feature, but it's only REALLY useful for certain people. Like everyone said already, 15 minutes will be better for "Let's Play"-ers, especially if they can export the videos (I imagine they'll be able to, but I haven't read anything confirming this.) Anyone going over the 15 minute limit shouldn't have too much trouble then, since they could easily record a second video and quickly piece them together later. I do find it quite entertaining how PC gamers are claiming superiority based on a 15 minute recording limit that'll mean next to nothing if the Ps4 is anything like the Ps3.
I'm not really sure why people are complaining that sharing is there in the first place, either. Like I said, I'll rarely use it, but if something funny happens I now have the ability to show people. Everyone says "WHY DON'T THEY TALK ABOUT THE GAMEZZ!?!" Advertising a console is about saying what it does, and what games it plays. The games have already been announced, and there will be more down the road, but some of the specifics of the console aren't known yet. There's plenty of news about the games coming out, but by now it has little to do with the console itself unless it's using a feature unique to the console. People are complaining that console news is console news, basically. The only time these complaints are valid is when they spend most of the time at a conference showing off features like this, like during the XBone and (to a smaller extent) Ps4 reveals.