It really fills my heart with pride to hear that so much of the world is emotionally invested in our election- back in June I was in Dublin and a friendly cab driver began talking about how much he wanted Obama to win...
(Of course it also makes me feel a tad guilty for not following world wide elections closer in the past.)
Unpaid @ 1: Loose the guilt. The Germans and Japanese pay attention to the U.S. elections because they affect them. The Japanese elections don't affect the Germans any more than they do to you, and they don't pay attention to them any more than you do. Peoples the world over are more or less equally rational in the distribution of their attention.
UK politics is kinda fun...