AMAZING FANTASY #15 (MARVEL) – AUGUST 1962 – CGC 7.5
Already at nearly $30,000 with 4 days to go. That puts it at #23 with plenty of room to climb. 50-60k would put it solidly in the top 10.
Of course, it's an Amazing Fantasy 15, which means I'm nodding off writing this, but it's still interesting whenever anything cracks into that top 25 list.