Pros only play omaha cash, why?

[strde635]

If you check out any professionals using a buddy system like <font color="green">word deleted - Buzz</font>, you will find that the professionals are playing PL Omaha cash games only. Why is this so?

I've been playing NL holdem for a few years now and i might need to switch my game up because for some reason the professionals arent playing it. Can somebody help me discover why?

What do they know here that I dont?

Thanks.