i've never played any of the AoE games before. would you say that for someone like me, AoEIII is a good purchase even if it's not a major strategic improvement over previous incarnations? or would you recommend another game entirely? i'm eager for StarCraft II, but i think it'll be a long while.
Sure, AoE III is a good, 'solid' game in its own right. If you're not familiar with the AoE series, it wouldn't be a 'bad thing' to start with AoE III. Besides, it might be harder to play earlier versions of AoE, if only because the graphics are so 'dated'. AoE II: Age of Kings/Conquerers is still a fun game, 'imbalances' and all, but the graphics could take some getting used to.
Age of Mythology would probably be the game I'd recommend, though, for people new to the "Age of" series; in AoM the gameplay is more strategic due to the large array of special units and the fact that each race plays differently; there is also a meta-game layer built seamlessly into the game that comes with selecting a new minor god with each age advancement, not to mention God Powers, titans, etc. The maps are also better.
If I have to fault AoE III in one area, it's the maps. AoE III's maps look great--but they're so damn small, and rather "uninspired". A game like Dawn of War has maps that lend themselves to the game very well; each map is distinctive and adds a different layer of strategic value. Not so with AoE III.
AoE III's maps are just too generic, even down to the placement of trade posts, native villages, etc. Certain maps are better than others, and do provide more strategic depth (morseo than the original AoE maps, which does make AoE III a slightly better game in this regard), but, on the whole, the maps become very 'repetitive' after a while, largely due to their small size and the fact that you will end up using the same strategy for a particular map, over and over and over again. The static placement of trading posts, etc. is a good and bad thing; the maps are better than AoE II, but not as good as the maps in AoM (which also had static placement of things, like cities). And compared to maps in Supreme Commander, Dawn of War, etc., there's just no contest.