I am going to be building new wheels for my fixed gear conversion. After researching hubs such as Dura Ace, Phil Wood, Chris King, Suzue, Level, etc. I narrowed it down to either Dura Ace or Chris King. In choosing either I would be paying in upwards of $300 for hubs. This bike will simply be used for commuting downtown. I will not be doing any racing. My question then is, do I really need to spend $300+ on hubs? What is sufficient? Is there something cheaper with a long life span or hubs that can be maintained? What are the major noticeable differences between hubs? Thanks.