I only really bring it up because Trek makes such a big deal of it when talking about the Emonda.
Hoses, housing, and wires run externally for easier service and repairs, but in a groove that keeps them out of the wind.
The top tube and chainstays, which have virtually no effect on drag, are optimized almost entirely for stiffness to weight.
The drivetrain shows light wear but the derailleurs, shifters, and levers have not sustained any damage.
Trek likes to keep it simple, stupid when it comes to navigating its road bike range.
Bikes with suspension components have minor scuffs and scratches on the fork legs and shock, and the stanchions are immaculate.
On all but the steepest of climbs though, the Émonda doesn't feel as heavy as the road.
It's amazingly popular and rightly so.