The $179 one is what I have 3 of, and then I have 2 manual, (850vII?) and the xpro trigger - but mine are all the Adorama versions so I dont' have to deal with China, as pointed out.
And yes my bag is definitely lighter as I don't have all the AA batteries to lug around (both in the flash and sets to replace). Tough units, have dropped onto padded concrete and they are fine.
Adorama Flash units.
Make sure you select the canon brand so TTL works.
Also, be patient as they do run specials, particularly around black friday/christmas.