At time of press, each Terahash returned approximately $2,800 per day in earnings.
Kindergarden math would suggest that's wildly inaccurate....
1 block/10mins @ 25coins/block = 3600 coins/day
Network hashrate (now) = 343Th/s
So 1 Th/s (if existing not *adding* to the network) would expect to get 1/343 of 3600 coins/day = about 10 coins/day = about 1000$/day _right now_ with an ever decreasing amount as others add to the network
Some days are better than others (but it all evens out in the end) - a real example - 370Gh/s on 1/August received 4.13 coins, so scaling that to 1TH/s would have been 11.16 coins