That's a tuffy.
Ownage - I personally don't think you know what you're talking about. Give a reason why.
I would stick with the NYX for a couple of reasons.
1.) It's an NYX - come on
2.) It's resale is much more stable.
3.) Just as fast if not faster and depending on the board you'll have the same if not more control of the marker than you would with the cocker.
4.) I love cockers and I love matrices, owned and shot many of both.
Cocker may be lighter, and the NYX may be heavier (statement of the year), but pound for pound, I'd stick with the Matrix.
On the side of the cocker -
1.) It's much rarer than what you'd normally see
2.) Hella fast
They look great, shoot straight, and aren't cheap. Not many people other than those that build/tech/own these guns will be able to help you based on common knowledge so that's a downside if it goes down. The only other thing I'd say is see if you could try it/one out before you commit. You may hate it, you may love it. Good luck to ya.