It's human nature to feel the need to fill up empty space. It's why a congested highway that is then enlarged remains congested. 32GBs is plenty if you manage your content. If you don't manage it 64gb will fill up soon too. But the odds of you needing that much media in any given week or two is probably really low unless you sit on your ass all day -- and if that is the case you have a TV and a computer.
