Almost got suckered on one of the KO Nike Convoys. Its packaging was a dead-on copy of the real deal (no SUPER TRANSFORMING!), but the bot was missing a couple small paint apps. In close-ups, the paint apps that WERE there were sloppier than they should've been. Contacted the seller and he admitted it was a repro. In both cases, the auction descrpition would have you believe these are genuine items. They should really be reported, but it would be hard to prove to the eBay overlords.
I just can't see getting any of these, real or not. Too much kibble and a crappy alt mode just lets itself out the door.