I'm lucky. When someone needs DJ service, I turn that over to my son. I own the company-equipment, etc. I stick to country clubs, jazz clubs, high-end restaurants and political/social events. I work as much as I want to and get a cut of the DJ work.
Would never consider doing DJ work myself, but that's because I have specialized in a certain kind of live work which is not compatible with DJ stuff.
I'm "old school" and don't want to change...EVER! If what I do is not successful, I'll quit.
Russ