OEM Side Skirts Question, AND Comparing... 56k BEWARE Options

[ExSane]

Hey guys. I was looking into buying a set of OEM Side Skirts that came on 'some' Celicas and I was browsing around and noticed something.

How come the SS-III Side Skirts look exactly like the OEM ones? $750 for a pair.


And then I was browsing ToyotaNation trying to look for the Headlight Projectors but stumbled upon this page! Isn't #16 "Rocker Molding" the OEM Sideskirts? If so, they cost way lesser.
http://www.trademotion.com/partlocator/ind...amp;catalogid=2

And then I was browsing aftermarket parts earlier and stumbled upon this page! Isn't those the OEM Sideskirts? If so it costs lesser to have that set than any of those 2 up there... maybe becuz of fiberglass? Not sure but they are all the same to me.
http://www.amazon.com/exec/obidos/ASIN/B00...to-20/ref=nosim

Now I wonder why do all these look alike and costs so much different?

[malpaso]

Toyota OEM genuine side skirts are just one... They has been used for: SS-I, SS-II, SS-III, GT-four and GT Celicas. Just that one kind of side skirt. And it's that one on my picture used here... So if Toyota world here sales genuine parts, it must be exactly that same sideskirt like mine from local dealer. If it's not, so... that part from Toyota world is not genuine one... It's some aftermarket part. Thats all...

Now question is: Has really Toyota world selling genuine parts or not?