We all know we got into SK for boobs but action games are perfect for showcasing this. Fits much better and naturally that a cooking game for example. Also action games have much more replayability than something like Bon Appetit. You've got to remember that they are still games you're playing. Yes, you want boobs but you also want a game that that justifies your purchase.

Let's be honest, the gameplay, story, and character development has always been pretty mid to low tier.

I'd say SK2 did quite well in those categories. Not anything out of this world but definitely above what you initially expect from the franchise. Kagura and Naraku's development+story was nice. The partner system also worked quite well (shame EVs partner system was a step back). The characters get insanely broken at lvl 30 tho

Seriously though if I get boobs while also getting a damn fun action game it's better right? Boobs + holding hands with a character in a class room just ain't that fun. If all people cared about were boobs remember there a loads of other games with boobs as main focus yet they don't have the same appeal. There's a big reason I don't give a damn for them yet I love SK.