This might sound harsh, but it's a slap in the face to us DJs who spend a lot of time mastering our mixes, getting super creative, and bringing life to the party thought our skills.
Don't advertise you offer DJ Services if you are making some announcements, and hitting play. YOU OFFER SOUND SERVICES with music. It's false advertising to say DJ, and flat out messed up to bring down the people who really try and bring real DJ skills to the table.
So I ask, how are you different than Uncle Bob? With how easy it is to get music, and to rent speakers, why in the world would someone pay $1,000+ to someone who isn't really offering anything, other than setting some equipment up?