I've been loving pretty much everything Native Instruments does. I started with Maschine and then started Djing on the Traktor Kontrol s3. Now I have the s4.
As a somewhat newer DJ that is now getting booked for events I am asked all the time to use Pioneers CDJs.
Personally, I don't want to because I like Traktor and I like Native Instruments.
I'm also not interested in spending over $8,000 for an overpriced hardware just to learn how to use them, once in awhile.
If I were buy CDJs to perform at a small club and someone spilled a drink on my decks (or they get damaged other ways) I am out a lot of money. Even if I had insurance I could be down weeks or months waiting for a replacement as Sweetwater is always on backorder.
I would love to see Native Instruments step it up and create a new controller that could keep up with Pioneer, for half the cost...
The three major important features would be that it could run standalone, which would require a touch screen for each deck. In addition it would be capable of someone using a USB stick. Ability to run a minimum of four decks.
It can be multiple pieces like CDJs, it doesn't have to be all in one...
If Native Instruments could do this I feel they could swoop a huge chunk of the market. I would buy in.