NuclearVision wroteThose are good, for playing videos but you need a monitor a mouse and a keyboard.
That an extra 100$.
My opinion save up 280$ and buy a decent emachines netbook, I have had mine for two years now, it is awesome.
I have used them personally and they do not play videos well. There are a lot of hardware limitation, especially concerning how crappy they are.
@babum, Why not just get a cheap netbook ? They cost as much, They have awesome specs and they can run any OS you want. Including Android !