Because, as I understand it,the only thing people got was Concerts.

A folk Festival is not just Concerts. There are lots more things involved, such as Morris Dancing, Ceilidhs, Educational things for children and more, Workshops, Stalls and above all Singarounds and Sessions etc etc. And don't forget the real ale.

If it was a Folk Festival it would be something like this

http://www.youtube.com/watch?v=8PUif4un3Vg

When you have had time to watch all of it (and I mean all), come back on here and we can discuss further.