I don't know if 44 years of age is considered "older". But after being passed by a velomobile (ckaudio's), I became intrigued and read about the speed one attains during flats and downhills.
I basically bought my low racer bent purely for speed. But, I'm starting to enjoy the comfort my lowracer offers as well. I'll still ride my DF (with all the discomforts), but my bent is just so nice to ride. I can't wait for warmer weather to come!