My current feeling is that the Droid as it is today only appeals to a limited number of people (the geek crowd). Android needs a ton of work to make it as polished and idiot proof as the iPhone (as that's when tons of idiots will follow and developers follow the idiots with money).
After having it for a week, I wouldn't keep my Droid if it were simply the phone it is now + apps. However, it's the promise of getting all the hacked stuff that HTC phones now that would make me swear off an iPhone and never use one again.
So in other words, I'd wait until the Droid is rooted and we get all the cool stuff that HTC phones have hacked on their phones (like Sense UI) before taking the plunge.