Yes crafting will be plain useless right from the start because every prof is entweint with others:
Hey you wanna buy that recipe sure bring me some lw mats and some enchanter mats - wth?
you wanna buy that recipe? sure gimme some lw mats and ores - ok?
you wanna buy that recipe over there too? sure just hand me some leathers and some gems - ok, fuck up and keep them. Im a fucking lw/skinner and there blizzard claims you dont need alts with all professions.
apart from the fact that it takes to then also open the forge - you better invest your time in getting gear from everywhere else.
Its just not worth the time, at ALL.
WoD did it right with upgradeable gear.