I've been doing a lot of googling about this, and I guess the general consensus that I came up with is that if you buy a Kilo TT you are going to eventually start customizing it and before you know it you will be spending more money than if you got a "good" or "better" bike to begin with.

So let me ask you guys. What is a "better" or possibly more mid ranged quality fixed gear?

I can have a Kilo TT for $400. An Iro for around $650, and a Bianchi Pista for $800. I guess in this sense the Iro looks like the middle ranged bike, but it seems like a lot of people say that there is much to upgrade on the Iro as well?