And that's the problem with these craftable weapons. It takes 30 days to craft one and because it takes so long people want an insane amount of gold for it. Even for the lower tier people want 100k (which they get). It isn't just an upgrade for a lot of people but also people want these weapons for transmogrification.
Also there are ilvl 476 staff (BOA) and 476 offhand (for caster) and 476 ranged (I think a gun from engineering) that can be crafted for little money and way faster. Only way to get an upgrade over your 463 weapons you got from Klaxxi or heroic dungeons is to have enough luck in heroic dungeon or raid or do enough PVP to buy the PVP weapons.