No one is questioning whether mining with an ASIC is profitable.  Hell, my SC Single can still make me $ if I had them sitting in my house even though my power is $0.35/KWH.

The thing people debate is whether paying a company to purchase a miner and then mining using your own electricity will put you ahead of flat out buying the coins.  No miner currently available for pre-order seems to be able to recoup BTC opportunity cost.  With BTC prices down to sub $600 now it's pretty much a no-brainer that buying mining hardware does not make sense (unless you get a deal not available to the public).