Quote from: halix2000 on April 05, 2012, 04:24:13 AM

decided I am going to buy a Butterfly Labs Rig Box. It costs $29,890, and according to my calculations, (I pay no electricity) It will pay for itself in 2 and a half years, mining nothing but

what will the exchange rate and difficulty be in two months? twelve months? 30 months?

two and a half years is 30 months out.

what if the profitability stays exactly the same for those 30 months but then fpgas become obsolte for mining. if they have no resale value then, you basically mined thirty months and broke even, exactly.

Quote from: halix2000 on April 05, 2012, 04:24:13 AM

What do you all think?

unless you have way more than the 30k, this is probably not the best use of those funds.
buy 2 bfl or 4 bfl, buy a few hundred btcs and then maybe hook up with someone looking for a little capital to build something. then put the rest into anything else but bitcoin. diversify.