I just want to place my vote for how important this is to our firm. A building and site are designed together. I need intuitive site design tools that allow me to design and communicate what I want to our civil engineers. I can't even remember how long ago I posted site tool wish list items, but it's disappointing that Revit has not progressed in that area.
Please, Autodesk, invest in the site tools and bring them up to the quality of the remainder of the program. BIM does not end at the exterior face of the building.
Falling Water would have been very difficult for FLW to design properly with Revit's site tools. He could have created an exciting BIM of the house's design, but he would have needed a work-around or many frustrating days to create the house on the site.