As noted, drops provide an aerodynamic position and look "normal/cool" 'cause that's what the racing dudes use. Nothing wrong with them, but there are several options that might work better for long, consecutive days in the saddle. Many experience hand/wrist problems if in one position for too long. Multiple hand positions are important and drops do a good job of that. With flat bars, bar end extensions and aerobars will do the same.

Don't dismiss the idea of aerobars on drops or flats. They provide an aerodynamic position with no hand/wrist pressure at all. Hard for me to understand why they aren't used by more tourers.