I don't know where jstue got his numbers, unless it's a different pricing matrix he has access to, or he's looking at some old prices.
For example: (GM Parts Direct - internet source)
You have to consider that the prices GMPD uses are "cost" plus a markup that covers S&H, and depending on location, tax.
92259332 Lid,Panel,Tailgate EMBLEM
List $59.88
Dealer cost$38.09 (Cost +10= $41.90)
92252462 Front End Ornamentation EMBLEM
List $51.26
Dealer Cost $32.60 (Cost +10= $35.86)
GMPD price for parts: $70.69
Shipping & Processing & Handling:$18.79
Your Total Charges: $89.48 (no tax outside NC)
That works out to a total markup of 26.5% over parts cost. Many times shipping more items ends up being more efficient for an online ordering situation--for example, if 3 of each emblem (total of 6) were ordered, the shipping cost drops from $18.79 to $16.96 per pair, and markup drops to 24%.
At my local dealer, I could buy them for about $82/pr (incl 6% tax) and there would still be shipping to contend with. Even at the lowest cost for Priority Mail, the price to (your) door would still be as much or more than what you see above--and I wouldn't be adding anything for my gas or time to chase down the parts and get them shipped.
It's likely that C.P. can beat the prices from GM SPO (US), by a good amount, but the hitch is getting them to you from Oz and still be competitive in total cost--maybe he'll weigh-in on this.