From my experience (I'm in the middle of trying to get difficult child 2 placed) there are differences in criteria for admissions, modality of treatment, and discharge/graduation expectations for every facility - even from one Residential Treatment Center (RTC) to the next or one EGBS to the next. Some will take kids with developmental disabilities, but not mental health issues...some are the other way around. Some won't take kids in any kind of legal trouble, or with a history of violence, some specialize in those kinds of kids. I varies from one facility to the next. That's where we're running into problems with difficult child 2 - he has BOTH developmental disabilities AND mental health issues, plus criminal charges pending, and a long history of violent outbursts/meltdowns (which the psychiatrists are now calling psychotic episodes.)
Many of the facilities I've looked into (we've been looking at both RTCs and EGBS) have turned us away for one reason or another. If he didn't have the Pervasive Developmental Disorder (PDD) diagnosis, this place would take him. If he didn't have the mental health dxes, that place would take him. If we wanted this or that kind of outcome, some other place would take him. It really depends on the child's needs, available funding, and what kind of help you're looking for for the child. In our case, difficult child needs help with independent living skills, social skills, anger management, medication management, language/articulation assistance, AND needs to be in a secured, locked-down facility for the safety of others. Not an easy order to fill, to be sure.
I honestly never thought we'd ever get to a point with difficult child 2 where we would need to look at an Residential Treatment Center (RTC) or an EGBS. Unfortunately, here we are & I'm learning all too well what an uphill battle it is to get a child placed at all, much less a child with numerous issues that need so many different approaches, professionals, and treatments.
I can tell you that in terms of cost, short-term programs (9 months or less) average about $350-900 per day. Long term programs (9-18 months) average about $5,000-7,000 per month, whether it's an Residential Treatment Center (RTC) or an EGBS. And getting anyone to help with the cost, be it insurance, the state, alternative education loans, or what have you is a whole 'nother uphill battle.
If I knew then what I know now? I would have started researching and getting my ducks in a row months, if not years ago. I can honestly say that battling doctors and professionals was nothing compared to battling trying to get my son placed out of the home in ANY kind of therapeutic setting.
Just keep in mind though...mine is just one parent's experience. Others might have a completely different experienced since each of our kids are different, and each of our situations are different. I can just tell you what we're going through now in terms of RTCs and EGBS.