Its worth getting cause when AAE40 comes out you will want both to play the combined game. Also the introduction of new rules and units (convoys, declaration of war, air base, naval base, tactical bomber, mechanized infantry) make the game far more enjoyable and adds more depth and breadth to the series, further setting it apart from other board games.
Its this kind of developer support to the fans that will keep me with A&A year after year. If only other game companies would take the time to do something as simple as a statement like this then table top gaming would be in such a better place. Thank you for taking the time to be so candid and considerate to your fans Larry.