Getting ready to buy a new bike. I had a hybrid commuter with a flat bar that worked well for me except I ended up with tendinitis in the elbow shortly after beginning to ride). I'm definitely going to upgrade and am looking at the dropped bar like on the road bikes.

I mostly ride the road, commuting to work and leisure rides with the family. I do want to incorporate longer rides and perhaps do a half century this year. I have the option of riding on somewhat flat terrain OR going all out into the foothills. My usual ride incorporates both types of terrain since I live in the foothills.

So my question is...

What's the pros and cons of both flat bars and dropped bars?

(I haven't ridden a drop bar since I was a kid with an old 10 speed, I don't even know if I can stay on one now )

Thanks - Jen