I do, I do! (Campy Record with downtube shifters.)
But I ride STI shifters on my new bike too.
Honestly, I don't know why I waited so long. I can shift pretty effortlessly with the friction shifters, and sometimes the STIs seem to have a mind of their own. BUT, being able to shift while hammering away out of the saddle going uphill, at least for me, makes it all worth while.