Firstly, singers, musicians, actors and many other artists have spent years perfecting their craft, often at considerable personal and financial cost. And there's the financial interests of the music industry, promoters and venue owners who are all potentially at risk of losing money from the illegal broadcast of live performances.
Then there's the issue of the effect of waving a glowing brick around on the enjoyment for others and the person actually videoing.
US musician Jack White famously banned the use of cellphones at concerts, invoking a 100 per cent human experience. He told Rolling Stone: "People can't clap anymore, because they've got a f***ing texting thing in their f***ing hand, and probably a drink too!"
So what's that got to do with travel?
This. I got up at 1.30am to climb a mountain in Sri Lanka to visit a monastery and watch the sunrise. I (at times literally) dragged my 12-year-old daughter along and, even though there were about 10,000 more people than the last time I did this, I was hoping she could witness the magic of watching the Earth move from darkness into light and understand what a moving and spiritual experience this is, especially in such a special part of the world.
Sure, the number of other devotees would detract a little and, of course, they would be expected to take a few photographs.
But we were surrounded by at least half a dozen people who spent the 15 minutes or so as the sun's light warmed the horizon before a glowing ball broke through the cloud, flooding the low-lying countryside spread below us with beautiful, purifying light, a cellphone stuck in front of their, mine and others' faces recording the entire scene.
Some contorted themselves with their back to the spectacle, phones beeping and clicking as they tried to capture the perfect selfie, checking between shots to see how great their attempts were, so missing the sunrise completely.
I've spent about a quarter of a century working with photographs for various newspapers and magazines around the world.
I'm probably one of the last people to complain about people taking pictures. But there is a time and a place.
Photographs are an essential part of holidays and travel to different countries and cultures. Sometimes video is a great way of recording your experience and can look fantastic on your website, blog or social media feed.
And, of course, snaps of yourself in the environment shows your friends and family what a wonderful time you're having and can be great mementoes for your album.
But, it's a good thing to remember why you're there in the first place: to invoke the 100 per cent human experience, as Jack White said.
Get out there, take photos by all means but some memories are best left to just that: memories.
