I love having all my music with me. While I usually prepare set lists/crates that I usually stick to, sometimes you see the crowd react to a tune and you just feel “the next song needs to be this track…” and with digital you just have that with you, for sure.
Also I love to be able to take my equipment everywhere and that I do not have to invest 10k bucks into it, like in the old days. Plus the possibilities with easy samples, auto loops and much easier effects are also way cool. Never again get to a venue where some duche bar owner hooked up 2 excellent CDJs to a sad old mixer with tin can EQs…
Also never again to carry crates full of CDs or bags and bags of vinyl around is really nice on my back.