You are not alone...in your theory that is ;^)
Not only are the conditions extremely rare... but more importantly, the size of the universe is sooooo vast that even if there are intelligent critters out there who can communicate with us (extreeeeeemly doubtful), then it's ludicrous to me that we could receive their transmissions and then we could communicate back with them.
Given the speed of light, there's no way we could even dialog with any other beings (nevertheless meet 'em). That space-time continuum is a real pain in the neck. Not unless someone can travel at Star Trek speeds. And the beamer would help immensely too.
Personnaly, I base my 'theory' on the my beliefs that the creator of the universe came to this planet in the form of a human being and he then proceeded to let himself be killed for our sins. If God loves mankind that much, then obviously we are extreeeeemely special to Him (which I interpret as unique). Mankind's dominion over the planet confirms this.
I think technology is a wonderful thing as it only helps us to get a better glimpse of the greatness of the Almighty.
That's about the size of it. I don't know if that precludes other people on other planets, but as far as we are concerned the attention was special. The human race was in big, big trouble. Might still be, but at least we have a shot at getting it right.