Hi credry,
I purchased this from causeway Yamaha for $803. They tried to tell me in store that was the online price only... I said OK I'll call you from my mobile phone and place the order on my card if you prefer...
He accepted my card and price. Perhaps this is why I got my bike from Five Star Yamaha, who also sell Shoei.
Shoei GT Air Helmets - Shoei Helmets - Helmets - Street - Product Catalogue - Causeway Yamaha
Cully's Yamaha also stock this, may be worth seeing who can do the best price.
A few things to consider though, if the majority of your riding is in daylight consider a internal visor-less Shoei model. The visor is great don't get me wrong, I just always wanted a full tinted visor helmet as I ride mainly daytime.
I've owned this helmet now for 8 months without a full tinted visor, I love it but the visors are difficult to get unless from TT as I will definitely be doing.
Also consider all Shoei helmets are made in Japan in the same factory. Purchasing this online is around $200+ cheaper. The only difference is the sticker for Australian standards. Absolute bullsh**. ( Maybe see what TT can do for you? )
If the dealerships must replace the internals at your request free of charge as TT mentioned then it's worth the extra $200 to have that service. If not I would buy online. You could always email Shoei Australia with a photo of my helmet with the sticker on and say you cleaned it and threw the sticker away and request a replacement

.
And tell the same story to the Po.
My next helmet will be this.
Arai XD-4 Diamante Helmet - RevZilla
And purchased online.