Not everyone is excited to go to parties anymore. When they hear you will be having a disc jockey, this could be a whole new story. Everyone wants to hear music and not necessarily stuff from the same era or even band the whole time, so go with a disc jockey to keep a wide variety and fun for the party.
When considering the hiring of a disc jockey make sure to find out if they have their own equipment. This would range from turntables, tables, microphones and even speakers. There are many things that may be overlooked if the right questions are not asked to find out.