No More UFO's?

During the 1950's up until the 1990's really, UFO sightings were all the rage.
They would crop up on the news and in the papers every week.
People would even be interviewed on (mostly local) news saying how they'd seen lights in the sky etc or 'discs'.
But then, something changed that has pretty much (as far as I can make out) stopped the sightings.
And this thing is? Mobile phones with cameras.
Most mobile phones nowadays have cameras on them, and nearly everyone nowadays has a mobile phone, so, if someone 'sees' a UFO the question will be asked of them 'why didn't you film it with your phone?'
Good question. No answer.
So people have stopped seeing them - which would suggest that it was all aload of bollocks in the first place.