At my course they have a mat range and two grass areas; one being the current hitting side, while the other is the re-growing side. The hitting area can last close to a month, by moving the hitting area back every couple days, but also usage of the grass area is only available as part of their membership. Their membership allows for unlimited use of the course, all practice areas, and even the mat range. It's a nice setup, and definitely hitting off the grass does provide a closer-to-realistic hitting surface.