Theres a reason BD bikes are almost advertised. Give me a good reason I would pay twice the amount of my kilo for a bianchi pista. Stock they have VERY similar components, and there even seem to be widespread complaints about cracks and other troubles with the pista frames. You are basically paying a huge premium for an 'italian' name brand, which actually imports all their bikes from a factory probably right next to the BD factory in Taiwan.
And most fixed gear riders on this site are on the market for these 'low end' bikes... in the end they are all basically the same and BD is cheaper. Steamrollers are nice for their versatility though imo.