My husband and I had never really played any of the FFG card games before Arkham. So we didn’t know anything about this two core set model. We were old D&D hags. And we never were into collectible card games either. But we enjoyed playing the Arkham board game with friends and thought we would give this a try and liked it a lot. We got around the cost of our second core, by buying it on Amazon and using our points. It cost us $2
So we started out as casual players and can call ourselves pretty hard core now. We love playing with the two of us running 4 investigators, or playing with friends. Or using two investigators if we are short on playing time. And we play often. A lot of those core player cards from both sets are in use all the time. And when you think about it, an expansion costs about the same as two movie tickets with way more reusability!