Back when I DJ'd techno in the 90s I would have killed for this for what it could bring creatively to a set. Just the ability to cut my own tracks onto white labels and put custom loops etc on vinyl would have really changed things entirely without having to front a whole bunch of cash (which I def did not have) to get a batch of records pressed which probably nobody else would order or play.

But now mixing is done digitally and playing with vinyl is a mostly lost art and it's trivial to put your own material together into audio files and mix it.

I've heard tales of Ritchie Hawtin playing multiple turntables (6-8 depending on who's telling) where he'd have tracks separated as stems into dub plates and do live remixes by swapping out the plates. The things people did before Ableton!