DJ Scream the street music DJ currently out of Atlanta charges around $10,000 for DJ mixtape hosting, so what are the benefits? Firstly, it can help a rapper to gain recognition. Worth the investment just to put your name where the giants are.
By standing on their shoulders it make it easier for people to discover you. Another reason is if you have something to promote. Your new single or album is due out and you want to get some hype around it. What better way than going through a famous DJ that will give you great exposure, it almost doesn't matter what they do to the song, just your names together alone will benefit you.