I'm with tsl and richjac... just added a road bike (but kept the hybrid bike) because I was tired of the flat bar and thumb shifters. Now I mostly ride the hoods.
I bought the hybrid/flat bars when I got back into biking a couple of years ago because at 54, I thought I was too old to ride the drops. Guess I had to get that bike so I could learn what I needed to know for the 2nd bike. Wonder what bike #3 will be?