God you're dense.
We're discussing how much it costs each individual to mine, not how much you COULD mine for. If we go that route, you may as well bring FPGA's into the equation. You COULD mine a whole heck of a lot cheaper with those.
For ME it costs ME $200 of electricity to generate 30 bitcoins. I've already explained why, and you can't argue with me. It is what it is. That's how much it costs. I'm not complaining, as you seem to imply, I am simply stating the true facts of my situation.
I'll stand with you when you say that it doesn't cost every miner $200 to mine 30 BTC, but I won't say that it doesn't cost any miner $200 BTC to mine 30 BTC, which you seem to be trying to imply.
I'm not saying that its impossible for it to cost $200 for 30 btc. I agree its possible especially when the op pays 29 cents per kwh. What I'm trying to point out is that a huge amount of people on this forum over exaggerate the cost of electricity. The first person I quoted I proved he could mine for less then $200 which was his example. My point is it's quite easy to lower your cost of electricity. I recognize in some cases (like yours) it may not be pleasant to do what I suggested but if your not willing to do such things you have no right to say that your paying too much in electricity.
Before you start stating that I'm saying your complaining I'm just using your example as your the only one who was so specific. I don't think your complaining but I think alot of people are when they can clearly make their situation easier.
The problem is once you joined the equation my point got father from what it was originally which was to prove that kokojie's example even for himself did not add up and he was wrong. I showed above that in reality he should only have to pay around $176 dollars and he has yet to give me any reason why he would have to pay more.
Going back to the OP's situation then, you still haven't proven anything. The OP hasn't even stated his electricity costs. Not to mention, you're still running on the (possibly false) assumption that he is running four cards per rig, or has other means/methods of lowering the rig electricity draw per card to 25 watts. Like I already pointed out, not everyone run rigs full of four cards each. And for those of us that do not, our electric costs will be higher because of it. So, without purchasing a new motherboard and more mining hardware, he very well could have no choice but to mine at $7 of electricity per BTC.