1: $25 is the price we intend to release the game at. On itch you're basically paying for an Early Access game. Which gives you the benefits similar to our $3 Patreon tier where you will get access to the latest version a month after it's release.
2: Yes, though it may be a lot simpler than a full character route.
3: Yes. Nathan will have sex scenes, but it may take a while to get there. Kate already has sex stuff in her route.
4: Potentially, Aaron we'll take a look at continuing when we work on creating a new batch of walk around events. Mr. D essentially gets tired of you and ghosts you so that's the end of his little side story.
The strip club side event? I haven't been made aware of an error regarding it. I'll look into it and see if it's something that hasn't been fixed yet with the latest version. Checking the changelog there is no mention of an error being fixed with the stripclub.
Thank you, I'm glad that you've enjoyed the game so much! If you want the latest version for a cheaper price then you can pledge to our $6 tier on Patreon or Subscribestar, but that will only get you access to the current latest version and not permanent access to it as they release.