LOL stap!!!!
Nothing better than getting even!
I always promote tandems to my friends. I offer them the use of my tandem (nobody has taken me up on it yet). I think a lot of it has to do with the age of the cyclists. Tandems are by-and-large ridden by middle-aged cyclists. And, the vast majority of teams are male/female couples with the female being not as passionate about cycling and generally not as fit as the male, or both the male and female are not all that fit.
So, some of the predjudices hold a little water. But...there are tandem teams comprised of two fit riders..and they fly!
On the local tandem rides, maybe 1 out of 5 teams can keep a decent average speed up. When I did the GTR, it was down to 8 teams at the front.
So, keep on making the singles eat their words! its fun!