[jincomplet]

Right, fair enough, but obviously other people like watching concerts on tv, hence live dvds/cds selling.

Not to mention someone might not get to see their favourite bands live so this is what they have to do. An inferior way to experience it but necessary in some occasions.
I mean, it's not as simple as what Mase said.

For the record, I don't even really watch concerts. I've seen and enjoyed a few though.