i havent had a fixed gear bike in two years. still have my sscx. im probably going to put together a fixed conversion roadie in the near future as i have been missing it lately.
the people talking about cost effectiveness should know that with roadies going 11spd, 'old' 10spd groups are cheap as eff. if you take your time and make some friends at the LBS you can build a nice aluminum frame craybin fork roadbike for about the same cost as a middle of the way track setup.