my 2 cents
I spent $1000 on mining gear and i only have 20gh/s to show for it. Which gets me about $3.5 a day (after elec costs)
Think of it this way, your not mining to earn money, your mining to gain some of the limited supply of bitcoins which in the future MAY be worth alot of money
You really need to mine altcoins. profitability of LTC or Doge is MUCH MUCH higher. Seriously.