08/03/2013
The prices over at the Bohemia Interactive store have again resumed their prices inline with the Steam store. Thus for a second time I am going to expire this offer.
07/03/2013
Un-expired edit:
It appears that Bohemia Interactive have reenabled the purchase of the Standard and Digital Deluxe versions for a discounted price via their own store rather than through Steam.
The best way to view the pricing is to ensure that you have created an account and are logged in.
The US price has also been adjusted to a lower pricing level roughly inline with the GBP pricing.
Current prices in US dollars are:
Standard $25.04
Digital Deluxe $43.84
Supporter Edition $75.16
05/03/2013
ARMA 3 was released in Alpha version today. It is available for purchase at three different tiers of Standard, Digital Deluxe, and Supporter Edition via Steam and Bohemia Interactive directly. The Supporter version is only available currently via BI. The current pricing structure reflects a lower price point given the Alpha status of the software but by purchasing now you also receive access to the Beta and a full copy of the game upon release.
A list of all inclusions in the different versions is available here http://www.arma3.com/buy#buy
Steam is currently unlisted in search results but can be found here:
http://store.steampowered.com/app/107410
Standard USD $32.99
Digital Deluxe USD $49.99
Supporter USD $91.99
Alternatively, if purchasing through BI directly at http://store.bistudio.com/ if you choose GBP currency the Standard version is available without tax for Australian residents at a value of £16.52. Paying with PayPal for myself increased this to AUD $25.50 at current rates and charges. A Steam serial key is then emailed to your email address.
Thus at http://store.bistudio.com/
Standard £16.52 = ~AUD $25.50
I would provide further prices for the other versions but the Bohemia Interactive store is currently timing out due to the load on their servers.
Thanks OP I was going to purchase through steam tonight. I will go direct and save paying in £