Arma 3 alpha vs arma 3 digital deluxe edition?

i want to buy arma 3 but when i click on it on steam it has two options arma 3 alpha and the " digital deluxe edition" and i dont know the difference between the two and if it is worth the extra 10$ to get the " digital deluxe edition".

i have the exact same question... i really whant o know if the extra money is worth it

Copied straight from steam.

Alpha Access

Purchase Arma 3 Alpha now and receive the following:

  • Alpha-access – Be one of the first to play Arma 3 and contribute to its development by providing feedback.
  • 3 Alpha Lite Invites – Introduce your friends to Arma 3 by inviting them to the free invite-only Arma 3 Alpha Lite (available from March 14, 2013 until June 18, 2013).
  • Beta-access & Full Game – Gain access to the Arma 3 Beta as soon as it becomes available. Get a Steam version of the complete game upon release.

 Digital Deluxe Edition:

 In addition to Alpha, Beta, and Full Game access, the Deluxe Edition includes:

  • Digital Soundtrack* – Enjoy the compelling Arma 3 soundtrack wherever you are and wherever you go in high quality digital format.
  • Digital Maps* – Plan your combat operations with the highly detailed maps of Altis and Stratis.
  • Digital Tactical Guide* – Find tips on how to survive in combat and accomplish your mission with a comprehensive tactical guide.
  • Arma: Cold War Assault – Go back to where it all began and relive Bohemia Interactive’s award-winning debut game once more.(Already own it on Steam? Gift it to a friend!)

*These items will only be available in English and will be distributed upon full release of Arma 3.

is it worth it though?

Haha, I couldn't answer that for you my friend. It depends on whether or not you want all the extra stuff that comes with the deluxe edition. Like the soundtrack.

I personally don't want any of the extra stuff. Just the game itself. So, to me, it doesn't seem worth it.