“SJSinNYC- There is no source per se that real-looking sheitels are assur. But it is still a lack of tznius in the spirit of things. “
Again, it is not good to make assumptions about the nature of the reason for the halacha of covering one’s hair. If there is “no source, per se, that real-looking sheitels are assur,” then you really cannot necessarily assume that there is a lack of tznius in the spirit of things. It may be in Hashem’s eyes that any manner in which a woman covers her hair after marriage, is considered tzniusdig, because it is only the actual fact of the COVERING (and not any specific reason WHY) that is the important aspect. Since none of us has spoken to Hashem about this recently, we really cannot presume to speak for Him or ascribe reasons to Him that may be based on a mistaken opinion. Because the halacha was not spelled out in the Torah but only alluded to, there is a machlokess throughout the ages as to exactly how it is meant to be observed. I said it before – we should be glad that many women, who otherwise might be turned off from wearing a head covering, are in fact covering their hair, instead of arguing whether or not they are doing it the right way.