the sad thing is that in this "DJ superstar era" the actual DJ-part is lost. In the beginning people became superstars because they were DJs, now people becomes DJs because they are superstars.
For example here in sweden we see more and more of "famous-for-whatever-exept-music guy" doing "DJ-gigs" on clubs. We have touring concepts with "reality-show stars" doing guest-apearances as DJs (and bartenders) . In those situations the people who has been working hard as DJs for years and beeing those who actually "paved the road" for the whole clubscene have to stand back and act as warmups.
To promote yourself as a DJ here is not allways that easy since many clubowners nowadays in this "everybody is a DJ" times has a line of kids with a macbook, a controller and 1TB of pirated music, willing to play for litterally peanuts (and a couple of beers). And in many cases the clubowner doesnt care about quality as long as they hear music
fortunately we still have a "underground" scene with producers, DJs and audience who still has the love for "the real thing" A few of them becomes big names, the rest keep on doing what they always done "practice and enjoys"