Christy,
It's interesting that you should write this. I was just thinking along
the same lines. I didn't enjoy
Strange Travelers nearly as much as
Wolfe's earlier collections. I think it's less a matter of "flagging
talent" than that Wolfe is putting more of his energy into his novels
and less into his short stories. I suspect that he continues to write at shorter lengths because he can express ideas that wouldn't fit into his novels. But I feel he is becoming overly self-indulgent in his short works. In his earlier collections there were a considerably higher percentage of stories that could be enjoyed without first having to be decoded.
"The Death of Koschei the Deathless" was my favorite story, too. As far as Lang's Fairy books go, I highly enjoyed all I have read, and I have read several. I really don't remember exactly how many it was and some of them I read long ago, but I recently started re-reading them on-line. You can find most of them if you do a search on "lang andrew" at the On-Line Books Page <
http://digital.library.upenn.edu/books/>.
If you don't like reading lengthy texts on a computer screen, most of the Fairy books seem to be in print. I saw at least a dozen titles on Amazon.com. Try your favorite on-line bookseller or Bookfinder.com <
http://www.bookfinder.com/> if you want to try used copies. I don't know of any boxed set, but it is certainly a good idea; if I find that such a thing is available, I'll let you know.
William Ansley