Here in New York State the DJs put most of the wedding bands out of business
When my nephew's kid got married they hired a DJ. I asked the kid "With a musician in good bands in your family, you hired a DJ?" His reply actually made sense. He said "I have heard your band and you guys are great, but this younger crowd will want to hear music you don't know and can't learn on the fly. A DJ will either have the CD or be able to download the song on the spot and fill every request." And as sad as it is to admit it, the little punk was right. We don't play that "whoop there it is" kind of music, nor will we ever. Plus the DJ cost him 1/4 of what a band would have cost.
It's sad to become my father and say this, but it is truly a different world.