As kavan suggested, I think hiring a private nurse would be a good compromise between staying 2-5 days in a hospital at an exorbitant cost versus being discharged same day from a surgery center and then suffering at home without a medical professional. I had top jaw surgery only and was in the hospital for roughly 22 hours (I stayed overnight). I went into the surgery thinking that the overnight stay was unnecessary (I'm also very healthy), but honestly I was VERY glad to have that around the clock nurse care that first night even though I had no major issues.
I ingested a lot of blood during the surgery and after I woke up I was vomiting blood for several hours. Due to this, I couldn't keep anything down. Without the IV, and later the urging of the nurses, I doubt I would have received enough fluid to stay hydrated. The nurses also made sure I was receiving anti-nausea medicine and pain killers (delivered as suppositories because as stated above I couldn't keep anything down). They also fashioned a nose bandage held in place with an elastic band because my nose wouldn't stop bleeding (it kept bleeding for 48 hours so I was happy to use this trick when I was discharged). Once I got home, I was able to take a very short walk with my dogs and the rest of the recovery was pretty easy. I don't think that would have been the case had I become super dehydrated in those first 22 hours.
Again, I don't believe I had any major reaction to the surgery, but I've read accounts of people projectile vomiting after the surgery and experiencing way more pain than I did. Without the nurses care, I think I would have been incredibly anxious and my mental state would have probably taken a big hit, which can make recovery much harder. As much as my husband tries, I don't think he could have helped me the way a trained medical professional could, and I was incredibly glad to have that assistance even though I didn't think I would need it.