I have had drops on all my road bikes and flats on mountain bikes. The old guys I ride with all ride road bikes with drops and I do not see many flat bars on road bikes while on the road or lined up at bike hang outs. Most of the flatbars on road bikes or hybrids that I see are on bicycle Sunday on a closed section of road ridden by the under 10 years old gang and accompanying parents. They do not use clipless either.