http://mining.thegenesisblock.com/a/df9a6ceb29
Anyone who purchases mining gear with the intent of profiting is doing so with the hope that difficulty will level off sometime in 2014 so that mining will be marginally profitable long-term.
A year from now you're looking at monthly revenue of $2. If you ever do break even years later, you'll be making so little that it won't even be able to cover electricity expenses.
All the profitability predicters do not take into account that if the hardware were priced cheaper to allow breakeven, they amount of hardware purchased would increase to nulify the lower price. There are a lot of reasons to mine Bitcoin, but increasing your wealth is rarely one of them.
![Shocked](https://bitcointalk.org/Smileys/default/shocked.gif)
Bitcoin is a virtual currency. If you're mining Bitcoin, by default you are trying to increase wealth because you are trying to obtain currency. The question is, are you increasing or decreasing? A year from now if you're only making $2 USD per month, and electricity costs you anymore than that, you have invested in something that decreases your wealth. Of course this is all assuming the BTC/USD rates don't change over those 12 months.
I have my own ASICs hashing away and was interested in purchasing some BitFurys. However I don't see it as being a sound investment anymore. Like most of you, I also hope the BTC/USD rate goes way up.