Ok, on the long run its a better deal than Buying 2 mining rigs with R9 280x or HD 7590s. The GPU rigs will start giving profit sooner though then after about a month Big Bit will catch up. So its arguable. Considering size though and power consumption I guess bit wins... but only on the long run measured at least 6 months or longer. I think the best deal of all would be to add 1500$ and just buy cointerra for May batch.
thats probably the better way to go because GPU commmunity is much larger and will switch to another asic resistant coin system like sha-2 or 3 whatever, and those who buy dedicated hardware with no resale value will join those who have a BFL Jalopeneo still trying to pay off the product.
rememeber a GPU system has 70-80% resale value or higher if you get a deal when bying. an underpowered asic has zero value.
let me give you an example. the $2,200 BFL 600GH card that is supposedly coming out, i saw the non working prototype a month ago in CES 2014 and at the time, if it was working, it was capable of making a bit coin in only 5 days and that is back then, 4 weeks ago. Something didnt click right with me, why would a unit making $200/day be sold for only $2,000?? well, it wont when you get it. the unit is still months away from being shipped and due to difficulty increase it , if it were in the market now it would only make one BTC in 7.5 days. when 10,000 of those hit the market and you receive yours in the mail, it will probably make one BTC in 50 days and soon after before you even hit the first 50 days it will be sink and make one BTc in 500 days, because there are now 10,000. of them running on the same network.