It costs AUD80 = RM240.
Why is it the most expensive?

And if I buy AUD copy, when I go back to Malaysia. Can I switch to SEA servers?
Not sure how it works.

Please note that your game-client version does not hinder your ability to select which regional game servers – the Americas, Europe, or Asia – that you play on.

yes you can.

from their site

If I live in Australia/New Zealand/Southeast Asia, what server will I play Diablo III on?
Diablo III players in Australia, New Zealand, and Southeast Asia will, by default, connect to the Americas region. By connecting to this region, players will have a wider pool of people to play with and access to a more vibrant and active auction house marketplace. Further details on regional connection options and auction house functionality will be posted at www.diablo3.com prior to release.

How does this impact the items I have purchased in the auction house?
Auction house purchases are bound to the servers in the region in which they're bought. Any items acquired on game servers in the Americas region are bound to those servers and are not transferrable to the servers in Europe or Asia (and vice versa). Please keep this in mind when making purchases in the auction house. We’ll release more details on the auction house functionality prior to the game’s release.

http://us.battle.net/d3/en/forum/topic/4175551303

The 90SGD price is still a bit odd considering EA's Origin store can sell me a copy of Mass Effect 3 deluxe at 10SGD less, and a copy of already-expensive COD Modern Crapfare 3 is still cheaper than this. Any idea if you can use proxies to pay the US rate instead?

hmm does OffGamer sell physical copy? lol I wanna hold the D3 cardboard box in my hands >.<

The 90SGD price is still a bit odd considering EA's Origin store can sell me a copy of Mass Effect 3 deluxe at 10SGD less, and a copy of already-expensive COD Modern Crapfare 3 is still cheaper than this. Any idea if you can use proxies to pay the US rate instead?

how can u compare COD and ME3's price to D3's price? Blizzard's game has always been expensive.

i gonna get physical version. hey i paid good amount of money i want to see real product

I know they are pricey, but I expect them to not price gouge SEA customers again after switching publishers from the stinking turds called IAH and not having regional Battle.net servers. 60USD = 75SGD, which means we're still paying 33% more.

Anyway, once again, anyone checked if they can use a US proxy to get the better US rate?

How much is retail box version sell for usually? Those who bought SC2 please do tell thank you.