I just finished converting my first nice bike (got it used in about 1975) to a fixed gear.
I love cycling, and for me, a roadie at heart, this is just another way to ride. It makes me pay attention, it's interesting. Going downhill is an adventure.
I got a flip flop hub with it, but only used it once. In for a penny.... and all.
I am too old to be hip, but I'm faking it. I don't have any extra stuff on the bike. It's "pure"
But I still feel the need to know how far I've gone, so (don't tell the cool folks) I stash my Garmin in my jersey pocket so I can read my stats after a ride.
Here's my bike. I still need (not want, but need) a red chain.