Bleeding cool is reporting that Marvel Preview #7 just sold for a record $2000, because it has the first appearance of Rocket Raccoon from Guardians of the Galaxy, which has been gaining a lot of momentum because of the upcoming movie.
I for one would be far more interested in the feature in the story. The first appearance of Satana, the Devil’s Daughter. Though this issue is collected in Essential Marvel Horror Vol 1 (which I just recently reviewed), I would still kill to have this single issue. The cover alone is just so spectacular.
Read more about the sale at Bleeding Cool.