I personally had zero interest in the wedding, or the Royals, but others do, for whatever reasons. When a lot of people have interest in a thing, it will obviously garner a lot of media attention.
I was waiting in the dentist's office a while back and picked up a copy of People magazine and leafed through it quickly. A LOT of people apparently like what it covers, which to me and you is 99% garbage, rumor, and irrelevant tripe.
The lives of a lot of people (including me really) are boring, they look for some kind of vicarious "thrill" to brighten their days, I imagine. And of course there is naught to be done about it so I just let it pass, as it will.
The rest of us can talk football or read a book or watch a movie or whatever else we do to pass the time. Back in the day there wasn't much time to be passed with idle pursuits, but today there is.