Oh yeah, I remember reading about how one of the biggest things in graphics is all about what is seen first, what is behind what. Made me wish that humans (and displays) just saw in 4+ dimensions to skip all those calculations :)
Buildings for sale can still look neglected, though. Depends on the housing market :)
You're putting a lot of detail into the game. I hope I don't wind up missing the details too much. I might have to play slowly to soak up stuff. I sort of remember doing that in the modern Shadowrun and some of the 3D GTA games, but it helps to know that at least some of the stuff is going to be interactive, so there's a bigger reason to look around. Of course if all one does is look for interactive objects one will go back to ignoring the non-interactive background again, but I guess there are a ton of different ways to experience most games.
Reminds me of looking into text adventures; I was a bit overwhelmed by the idea of trying to consider all the possibilities for potential users. I guess there's the Language of Playing Adventure Games that has slowly become standardized over the decades, and one has to depend upon that as a baseline.
Hope your final stretch to Alpha goes well!