With very few exceptions, I myself, never go to live concerts anymore and there are several reasons, however, they tend to boil down to a few. Firstly, for front line performers anyway, concert ticket prices, at least for a decent seat, have become outrageous. It would also seem that the guys on the mixing boards cut their teeth on heavy metal concerts, hence, regardless of the entertainer or the type of music, at the end of it, I never really heard the vocalist(were there any?),my ears were ringing and my heart felt like I had just been administered to with a heart defibulator.
As far as the idiots with their phones are concerned, sadly, we seem to be having more and more people out there who ignore the feelings or concerns about those around them while at the same time, think the whole world revolves around themselves.