Well Dave , if they do booze it will be better than our's , so bring it on !
I do agree that life is not unique to just the Earth . That is just plain arrogant , and it puts human life on a pedistal that we do not deserve . The fact is though we don't know what's out there and we don't know yet all the possibilites that await us .
As far as what would bring someone here to watch us , perhaps it was when we first tested the atom bomb . Perhaps such an explosion has more impact in ways we don't understand , rather than just blowing shit up . It all happened after that anyway , these beings just saw us split the atom .