If you're in FULL SB gear, you essentially lower your ilvl to ~7. Assuming you have an i90+ weapon on. They aren't high, but even WP and AK have ilvl reqs. Crafting/gathering gear is all classes for the SOLE purpose of the glamour system. Look at how they changed the new crafting/gathering hats to all classes.

I can't go to an NPC and buy all the white lvl 20 gear and still queue for the high level roulette, and that gear is BETTER than SB gear.