I have New Leaf, Wild World, and recently picked up Amiibo Festival since it was on sale for $10! Definitely worth it to get the Isabelle Amiibo that it includes
One copy of Animal Crossing on GameCube, two copies of City Folk (the first disc stopped working but I still have it), one New Leaf (digital), one Wild World (digital on Wii U), one HHD, and one Amiibo Festival.
1 Wild World (bought it used, but only played it once - not willing to buy a second copy for upgrading the shops), 1 NL physical (I'm thinking about buying a digital copy for my O3DS - either that or cough up coins for my favorite normal villagers and WA off etsy), 1 HHD, and Pocket Camp (which I haven't played since the Rover butterfly event).