Glad this thread got revived. Since this thread has started, I've had two drop-bar three speeds:
The first was a 50's Rudge that was given to me and I had fixed up. I had this for two years, from 2012 to 2014. The 21 inch frame was on the small size, if it wasn't, I would have kept this bike longer:
Then someone gave me a 23" Robin Hood frame around 2017 or so. Since I had (and still have) an upright Raleigh Superbe, I decided to build it up as a drop-bar path-racer. With the Rudge I simply flipped some North Roads, but with the Robin Hood I splurged and got a pair of Soma Lauterwassers. I rode this bike from 2018 until last year, until issues with the frame
made me scrap the bike.
Perhaps I'll build another drop bar three speed at some point, maybe with a nicer frame as the base.