It's gonna be fun to see people's confused reactions when they compare how many hours of Netflix you can watch on a Pro versus RT tablet (hint: x86 wins power hands down for video).

I'm not disagreeing with you on the battery life concerns, but this isn't really the target usage for Surface Pro, is it?  Watching that much Netflix in one go usually means you're at home, so you can run a power cable.  No sense in wearing down the battery for no reason beyond a very minor bit of inconvenience.