I'm back on a DF, a Bike Friday single-speed. In my case, I think I bought a recumbent too early in life, and wish I had waited. After I followed Rivendell's advice of raising my handlebars slightly higher than my saddle, I've been so comfortable on my DF that I haven't been riding my Rocket for the past 8 months.
I know I'll eventually end up on a 'bent - hopefully later rather than sooner - so I still keep my eyes open to the new technologies and design refinements coming out in the 'bent world. But I'm pretty satisfied for now.