I didn't mention items at all. I mentioned perks.

Let us review, for the class, the perks of each crafting profession in PVE:

Blacksmithing: Decent-quality ilvl200 epic boots and helms, plus two extra gem sockets - the epics are replaced, but the sockets last forever as long as you're a Blacksmith, for a bonus of 32 itemization points.
Leatherworking: Decent-quality ilvl200 epic leggings, boots, belts, and shoulders, plus extremely powerful wrist enchants - the epics are replaced, but the enchants last forever as long as you're a Leatherworker, for a bonus of 32 itemization points.
Enchanting: The ability to disenchant unwanted gear, plus ring enchantments - disenchanting ability never goes away, and the ring enchants last forever as long as you're an Enchanter, for a bonus of 32 itemization points.
Jewelcrafting: Decent-quality ilvl200 rare trinkets, plus three Dragon's Eye prismatic gems - the trinkets are replaced, but the gems last forever as long as you're a Jewelcrafter, for a bonus of 33 itemization points, plus the ability to use desired stat gems in off-color sockets (i.e. Stamina in red for tanks, Agility in Blue for Hunters), plus the ability to not use off-color gems to activate your Meta.
Tailoring: Decent-quality ilvl200 epic chests and boots, plus powerful cloak embroideries - the epics are replaced, but the embroideries last forever as long as you're a Tailor, for a bonus of 50 itemization points for physical DPS and 71 itemization points for a caster.
Alchemy: Mixology, which doubles the duration and increases the efficacy of all elixirs and flasks you use which you can brew - Mixology lasts forever as long as you're an Alchemist, for a bonus of 32 itemization points.
Inscription: Decent-quality offhands, Scrolls of Recall, and extremely powerful shoulder enchants - the offhands are replaced, but the shoulder inscriptions last forever as long as you're a Scribe, for a bonus of 32 itemization points.
Engineering: Decent-quality ilvl200 epic helms and decent-quality ilvl200 rare trinkets - the epics and rares are replaced, and nothing else benefits the user, for a bonus of 0 itemization points.


Do you see the disparity there? Or are you just blind?