I bought an Atala bike that was converted to a fixed gear and I'm fixing the bike up (new paint job and new components to match the chrome). It currently has an Origin8 black headset and I'm looking for a replacement. Browsing around, I see something as cheap as a SunLite threaded headset for $4 and then a lot more that go for $100-200. Any reason for some of the huge price differences? Am I ok getting the cheapy one?