I think the cameras are authentic but the customer service staff is fake.
Shops like Cathay Photo has been around for a long long time. No way they would be taking their stocks from non-official channels - especially for such well branded products.
Ya, right, they better dont cheat us on this. Otherwise, I think they will face the wrath of all of us liao. The shops listed in the Canon price guide section are all quite reputable, I think. Of course, CP is one of the "branded" shops there and they sell a bit ex than others also
I am still playing with the new AF system, see how accurate and fast it actually is.