Honestly, who doesn't have at least a TB of HDD space? I think my PC has 2TB and it's a piece of garbage.
It's not the space that's a problem it's waiting all day for 30gb to download. I have mediocre speeds so it'll probably only take 6 hours or so but there are a lot of people in America who have far worse speeds than me. And that's not even including bandwidth caps.
Here's hoping they have a decent pre-load option available.