It's really interesting how different opinions can be. I for one see it the other way. The extra scenes are very long and datailed. Sure they don't have their own moaning or portraits but they seem much longer than one base sex scene. Even if i fast forward / constantly push enter the extra scene seems to be going on and on.I'd like to say that I honestly think that you are wrong. Last update I subscribed to the 20$ tier and I think that for me at least it's not worth it. I changed back to the 10S tier precisely because of something related to what you've said, generally one would think that indeed the developer hides the best scenes behind a paywall but i think that's absolutely not the case here. What determines how good something is is profoundly subjetive, but the objective quality (unique moans, panting, scene configuration, portraits, etc.) of the normal scenes are better than the extra ones. The extras are just that, nice extras, if you have a particular deep interest in a character that is used in the extras then it may be worth the 10$ gap, but I don't think you are losing "the full experience" if you don't pledge to that tier, far from it.
Whenever i see them i don't know what to think.
One one hand i don't really care about them because i am not interested in the npc girls.
On the other hand i sometimes imagine something along the line "what if Rose/Cyanna/Haylen would get this scene"?
It would make the extra scene actually interesting to me but it would also lead to resentment not being able to see it whenever i'm not paying the 20$.