Perhaps it's because for a change it's about something nice happening to nice people.
There is a natural feel good factor that surrounds weddings, and Royal Weddings seem to capture that and spread the nice warm feeling around the World.
But don't worry about it.... I'm sure half the World's Media attention is only there hoping that something nasty will happen so they have something for their front pages over the weekend.
By Monday all will be over and the world can get back to reality once more covering the land in Blood and Body Bags.