I won't blame you. It's debatable if it's worth the storage. For me it's not, yet here I am with 2 installations of the same game but with different localizations. Japanese version is over 250GB btw.
There's a lot of storage wasted on uncompressed voice data, many redundant textures and many things that you probably don't care about anyway. But you have to keep in mind that this is the most comprehensive h game on the market even though it uses and engine from 2015 and graphics from before 2010. There are so many possible scenarios that it's practically impossible to ever watch all the events. I gave up a long time ago after finishing the main story. It's not my cup of tea.
There's basically no direct interaction. I'm not sure about VR since I don't own a headset and don't plan on getting one.
The only thing that could convince me to start doing events is if they implement pregnancy mechanics. I don't care about ntr and the gazillion marriage events.
You and your guests fuck the maids 2 times a day for months. There should be consequences.
The only thing I do in this game is to mod and make presets when I feel like it.