With the current difficulty of 609,482,679 you could generate in theory with 3TH/s about 0.1031 BTC/Hour or 2.474BTC per day.
I use this website for example:
http://bitcoinwisdom.com/bitcoin/difficultyIf calculate for delivery time in march next year, the average expected difficulty could been 5,941,344,136
Depend on this difficulty, the amount will decrease extremly:
0.01057BTC/Hour and 0.2537BTC per Day.
by March, BTC is worth around $1,500. It means around $350/day (based on 0.25BTC/day rate). $350/day x 30 days = over $11K.
If that is true, I would buy 100 3TH/s miners in a beat.
You don't seriously believe that we will be somewhere near 609m difficulty in 4 months, do you?
What is your expectation, that it's lower? Just watch the new asic machine and then the exponential trend. I guess in march next year something around 600m is not that much fiction...but, of course, nobody can look clear in the future.
I don't think you understand how difficulty works - it's based on the total mining pool. Every time someone turns on a miner, the next difficulty will go up. Think about all the other companies releasing miners between 30GH to 1000GH in the next 2 months. It's going to be above 2B difficulty by March and I'm being optimistic.
Please don't make statements on difficulty and hashrate if you don't understand the mechanics, it just confuses the new people.
Oh, you are a fortune-teller that you know the real total exponential amount in 4 month? I calculate with the current increase mister smartass. And i understand how the difficulty works, everybody with experience who read MY post will see, except you.
So lets see, how much you expect for march? Your 2B are much lesser then my 5.9B, isn't? Actually, if you able to read my post clear, i wrote exactly the same sentence of your repeat...