Hello.
Yeah, I acknowledge what you describe. During the last couple of weeks I Played the core game without any expansion so far. And I really, really enjoyed it anytime. It is especially striking to win above the "dark side" of gaming (cheating) and to live with whatever result the game delivers you with every new bit of "played story".
In one case things went really pretty cool; and all of sudden bad luck struck my investigators, and the Great Old One wreaked havoc on Arkham. In another case I really dashed along the red line for quite some time with always being one or two gates away from awakening Azathoth, and all of a sudden I was able to close a couple of gates and seal them with the limit of six AND win that way. It is exciting and thrilling.
Also "learning", "practicing", "enjyoing" and finally as well as hopefully "understanding" it makes it a lot more tense, exciting, thrilling ... just awesome.
Ia! Ia!
Mad