.info is a $1.99 a year expense, I'm guessing they are on a shared server which could be under $9 a month. Not allot of people use Bitcoins so server traffic is probably low atm. I have unlimited bandwidth on a shared account for $100 a year. I'm assuming they have something similar
Er no. They are colocating their own servers in a data center and the development work on of their site is worth hundreds of thousands at least.