No... but I will probably be doing one next year... last year I did SYD-AKL-HKG-MNL-ICN-SFO-YVR-DEN-CEZ//ABQ-LAX-NAN-AKL-SYD by myself and was not bored at any point (It was over a span of 2 weeks although the outbound flights were back to back).. this years travel is with a friend.. which will be nice.. but not essential to me...
I must say however that - while generally sociable - I AM a pretty self contained person.. give me some comfort (most of it was in C/J thanks to stuff learnt here on FT!), my laptop and a good book or two and I am perfectly happy alone...
I think THAT is more critical than how far/how many flights!!!