Well, I do not have magic myself, so I expect it depends on how much the amulet can do. No doubt it is very powerful, but learning to use it is like learning a language with no books or anyone to teach you.
Oh, I do not mind sleeping outside if it is warm and dry. It can even be pleasant in winter at the covert, with the hot springs running under ground. But there is something very pleasing and civilised about having the option.