At the moment, I'm visualizing my birth as a huge party. I have a couple of out-of-state friends who want to come, one with her kids, I have some other friends who want to be there, plus my siblings, his siblings, my parents, his parents, and the midwives. I have a feeling that most people will be outside of the birthing room for most of the time, and that people will care for each other and for us as we need it (doing dishes, making food, vacuuming, getting sleep, etc). When pushing starts, whomever is comfortable being in the room (assuming we're comfortable with it) will be there, and those who aren't, won't be. If we need to TTH, we'll have plenty of drivers (and cars). After the baby's born, there will be champagne and sparkling cider to go around. I'm fine with making that decision sometime in the future.
I'm also fine with changing my mind later on. I'm only 6wks right now, so I have a long time to think about it. Do what feels right for you and your family, and be okay with changing your mind later.