Well, there's some nicer buttons and knobs
There's a limiter for people who think red is good - that may be hardware, but limiters can of course be software implemented as well
It says high-durability fader... not really sure what the difference on these are
The DJM 2000 Nexus is 5mm smaller
All I could really find that would be different... maybe a slightly better sound card too but I have no idea on that