I love this title but I'm always the under bidder when they show up. I missed the 8.5 copy of 4 by $5 about 10 years ago.
This is the only one I have.
I believe Flex owns that copy now... I've been trying to get him to sell, but no go (and I don't blame him at all).
15 is a fairly desirable issue as well, classic acid in the face cover, but I think that one is more easily found than 4. My low grade copy will have to suffice.
Flex sold it to Mrillmannered about a year or so ago. It's locked up tight in his vault now. I tried to pry a book out of his hands recently and threw everything but the kitchen sink at him and he still couldn't let it go