Oas, I almost laugh when I readed :
I have contacted them about this question and they say something that "These days 500GB disk drive costs only $30 per month, so if some day we will run out of disk space we will simply add new 500GB disk drive with almost zero costs and you can continue uploading without any problems".
Why I am saying that? Because I use an host gator small account, I pay only 8 $ / month for UNLIMITED disk space, UNLIMINTED Bandwidth, and guess what ? I have 3 websites with .com domain in the same account, because,
he he , sit down in your chair... you can host UNLIMITED websites in just 1 account.
Go into my blog, I described
everything about HostGator Services in one entry.