Depending on your size (as the keirinculture thread reveals),
the Keirin frame might be a better value. Myself a few other
shorter riders here have all done very well with used Keirin
frames. I was shopping for a Barekunckle before I stumbled
upon an old Bridgestone in my size for $450, with a bottom
bracket, headset and Nitto B123 track bars. A comparable
setup with the Bareknuckle would have run me $600-$700.
If you're really worried about theft, just take the stickers off
and you won't have too flashy of a bike, as long as it's not a
sparkley, tri-tone 3Rensho or anything. If it does get stolen,
then you'll have less invested in it than the Bareknuckle.