a lot of this is really subjective.....
quick handling bikes can be a rush- but not if you're riding long miles or on bad roads. There is a fantastic purity about a track frame, though.
a high quality old frame is still high quality. New Drainpipe frames can be pretty expensive nowadays. Something to be said for reclamation projects, thrift, self-builds. Back in the day, riders wore out their old parts on the winter fixie. I still do; it reminds me of the old guys who taught me Fixed Wheel Lore on those snowy training odysseys......
I love the idea that road fixie frames (and off-road) are becoming fashionable (e.g., available new!) again. I've ridden a couple, but still like my old irons...