Well I just checked Allphones' website and saw this. I know it is not the cheapest compared to current offers from MobileCiti($549), UniqueMobiles ($548), Kogan ($519) or DWI($516). But it should be the cheapest compared to local stores like Telechoice($629) or Harvey Norman.
Pros:
- you get 2 years warranty from Samsung Australia so anything wrong, you can deal with them directly
- you can get the phone immediately from a local branch, and bring back on the same day if it's DOA
Cons:
- more expensive than grey imports
One other thing is the firmware. If you get it from Allphones you will get the Australian firmware, while grey ones ranges from Poland to Middle East, etc. Apparently the speediness of firmware updates for Samsung some times are region-specific. So either one is good and bad at the same time..
Mod:
Also at Harvey Norman for $598
Aussie version here and $50 cheaper
http://www.uniquemobiles.com.au/Items/sam-i9100-blk-16gb-oz1