Reply to Traktor S4 or numark's 4Track?

I've been recently debating whether I am going to buy the S4 or the 4track. Both seem like very good controllers, but I can't seem to figure out which one is better for me.

The reason I like the S4 is that it has complete and utter functionality with traktor pro/Its very versatile mapping-wise/ its small but not to small and its audio quality is great.

On the other hand the 4trak is also a great contender. It is also a 4 deck controller but the main aspect that sets it apart is that it has a stand-alone mixer that can be used with cdj's and vinyl. Although i do not have any vinyl or cdj's i want the flexibility in the future because i am buying a controller that can easily be replaced. The 4trak also has a ton of outputs and a 24bit audio card.


At this point I am stuck on deciding which i am going to go for. Any advice would be much appreciated.