About half the bands I saw all weekend had some really good visuals. I think the Black Angels' backdrop might still be affecting my vision. As recently as last year, you'd see maybe 2 or 3 bands doing it all weekend.
Why? Is it fashion? Coincidence? Is technology making it easier? Did the festival encourage it? Are there lots of artists desperate to do them for bands?
It's like how last year everyone seemed to suddenly have a saxophone in their band.