It depends on the reason why you DJ. If you want to be out there doing your thing for an audience, you might have to start making some choices about what you want to use professionally, based on the image you want to portray out there. You can still be broad in your music styles, but you will have to start limiting yourself to buying only the absolute best tracks in each genre (you’ll end up with maybe 10 new tracks a month) and spending a lot of time practicing cross-genre and cross-bpm mixing.
If you are just DJ-ing to produce mixtapes and to listen to music privately, then you shouldn’t worry and just keep doing what you are doing.
I love just about any kind of music (including most outside EDM/House/Dance, etx.), but that doesn’t mean I will use all music for DJ-ing. There is a very THICK line between my DJ-collection and my private iTunes collection. They do not match, mix or mingle at all.
One of the things advocated in the DDJT training courses and echoed a lot on these forums, is to keep your collection small and tight. To give you an example, our chief Phil Morse has a collection of about 600 tracks and practices a one in – one out policy when buying new tracks. This way you can have everything optimally prepared and, more importantly, have intimate knowledge of all tracks and when and how they would fit together in a set.
If you then put everything in mini-playlists of 3-4 tracks that you feel go well together, the picking for a gig becomes a lot easier, especially if you know a bit about the gig and the expected audience.
Hope that helps some.
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