I spent about 1500 USD for a system with a Trifire of 6970's and there's just no way I'll ever break even on it since I only started mining like a week ago and I have like 6 BTC to show for it so far. If I were to sell it on the exchange, I'd get like 90 USD for that, lol. Almost covers the Blu-Ray burner I picked out.
I'll let it grind through the whole summer but I do not expect to pull out more than 50 BTC when all's said and done before the difficulty gets cranked so high that it becomes weeks between BTCs even with pooled mining. Maybe someday they'll trade for 40 USD and I'll break even on the system if I choose to cash in but they can just as easily go to 0 USD, too.
Finally a person who has a pretty clear perspective of his own situation without clouding it with self reassuring lies. Right now at current exchange rate there is no possible way to recover your cost or even expect to mine more btc than you would if you purchased instead. If you are one of those people that keep telling yourself that this isn't the case because you are a miner, you will most certainly be in the loss in the coming months in you decided to jump in now. Just consider it more of a discounted gaming machine if you will at best. I wouldn't expect to recover cost at this junction.
Price increase, as much as people like to believe, is not in any way directly related to difficulty increase. One does not raise to lower the other simply because of it's changing values. It has moved in sync somewhat in the recent past to mask or make it appear so, but our recent 100% jump in diff didn't do a thing to price. In fact it dropped considerably after the speculative initial news reporting of Bitcoin from major media channels caused a major hike in price. None of this was in any way done by the difficulty increase and it won't matter in the future if general speculations of bitcoin will influence price in similar fashion and it will.