Samsung Chromebook or wait for Nexus Chromebook?

I heard the Nexus Chromebook is going to have a touchscreen and hopefully better build quality. The Samsung Chromebook is dirt cheap but the 3g module on amazon is $400 and have to get the 3g one if I'm going to use it as a main laptop.

So should I get the Samsung wi-fi, 3g, or Nexus Chromebook when it comes out?