I am a first time tablet computer buyer. I am interested in both the google nexus 10 as well as the sony xperia tablet z. My budget can go up to $600. I have heard that they both charge painfully slowly, is that true? I am leaning towards the sony xperia tablet z owing to the micro sd slot for expandable memory but i heard that the battery life is a disappointment, so is the audio. I love everything about google nexus 10 but it doesnt have expandable memory and 32 gb doesnt seem enough. What's your take? What would you pick? Thanks!