It's unfortunate that fixed gears became "fixies" and turned the cycling world off to them, much like "scooter kids" have turned off BMX'ers in a big way. However, years before fixed gears became mainstream, Sheldon Brown was writing about the benefits of them and promoting the idea of commuters and cyclists riding fixed. When I rode fixed, I found that my attitude changed on that bike - tackling climbs, hammering, Strava segment PR's and killing myself was completely irrelevant. Riding a fixed gear allowed me to go only as fast as my gearing and spin would allow me to, and by eliminating my option to shift, I could concentrate on the enjoyment of the slowed-down ride. This led to countryside roaming and day touring on flat roads and paths where I'd normally not venture off to. I mean, if I'm going to be a serious cyclist, killing hills are the only way, right?
What I enjoy about street riding BMX is the actual act of "riding the street" - literally. I love roaming, looking for spots, hitting ledges and walls that have never been touched by a BMX bike before; riding flatland in random places and just being out, people watching. However, BMX has limits - and 30-40 mile countryside roams are a bit much. So, enter the fixed gear.
I'm considering building another fixed gear - not a fixie… but a fixed gear. Winter is here - and in California, we don't quite get it that bad, but it does rain periodically and gets a little cold. I love rain riding, but I just don't love what that does to my CX drivetrain and the MTB trails close often. For those days I want to get away, riding fixed comes that relaxed attitude I sometimes need to unwind.