Wooo, 4 bitcents! 
Better than nothing I suppose... 
Better than nothing I suppose... It's more than you would get for interest at a normal bank account.
At a bank you get your deposit back.
If you store USD in a bank account your returned deposit will have less purchasing power than your initial deposit thanks to inflation. If you get less purchasing power back from your bank, I don't think that really counts as getting your deposit back.