To be honest, I've never even seen an MSN working in long-term care, and I've been at it for quite a while. In LTC there is a lot of responsibility even at the lower levels........LPNs are assessing pts, starting IVs, acting as charge nurses etc. while someone like me with an ASN is apt to wind up in management (I've been a resident care manager, staff development nurse, admissions coordinator, and even DNS without having gone further than community college).
If you're going to stay in LTC facilities, I wouldn't bother with the MSN; they don't pay enough to make it worth the additional expense. Conversely, if your heart is set on higher education, you may want to consider going on to become a geriatric nurse consultant, or even a nurse practitioner with emphasis in gerontology.
Wishing you the best of luck, whatever you decide to do.