I would imagine most Droid owners require the dual input options of physical keyboard/buttons and touchscreen. The Incredible isn't aimed at us, but rather those that prefer a touch screen only and those Droid owners who were apathetic or even disliked the physical keyboard.
After a stint with the iPhone, I will never do touch screen-only again. If there isn't actual physical keys, I'm not interested. My thumbs would fly on the Sidekick while walking and NOT looking at the phone. A month in to owning the Droid, I must say that I actually am adapting to the keyboard and it is nowhere near as frustrating as it seemed it was going to be. That said, I do wish we had the Devour keyboard on the Droid.