Where did people learn to play Heroes?

I started playing when I was very young, around the age of 3, which might be why it didn't impress me much. I played Heroes 4 consciously and even started winning against the computer on the "recruit" difficulty level. I played for days on end. In a computer store, I heard a guy say that a beta version of Heroes 5 had been released, and that he had played it, saying that "the graphics are great, and the engine is from Heroes 3." I eagerly awaited the release of Heroes 5. My initial impressions were mixed; I had many criticisms (see all the discussion threads about Heroes 5 from the past year!!!). With the release of the expansions, things improved, and now I'm satisfied with everything. Well, almost everything.