Nostalrius Begins - Quality wow vanilla realm (1.12)

I'm planning on going double-gatherer at least while I'm leveling my warrior, for extra cash. I've heard that, at least on the PvP server, the volume of players means 90% of skinning mats are worthless and the good stuff (namely devilsaurs) are permanently camped by organized farming groups.

Is that the case on the PvE server? Am I better off switching to a different profession once I hit 60? I've just never been inspired much by any of the vanilla professions, aside from alchemy and enchantment but I've already got those covered.