In Dominion, one of the best things about it is its replayability; every time you play it, the shop is different, and therefore, the gameplay. I love the ability to change it every time, and expansions can make it even more variable!
Many cards can change the play’s feel entirely, for instance, the Artisan makes gaining points much easier, and if paired with over-villages, could become crazy; a market shifts how the shop itself ends up functioning, a gardens changes how points can work entirely, and so on!