2017 MARKET UPDATE: NEW TO THE LIST!
I had never heard of Jock before I became aware of this amazing cover.
Joker is the hottest character in the Gotham universe at the moment, even hotter than his girlfriend Harley Quinn, and this cover, featuring the clown prince of crime with a face made up of bats and the Bat symbol, will endure long in the memory.
Add to that its very very late in the original run of Detective, when print runs had declined, and you have a scarce, in-demand book. Stick to CGC 9.8.
Other Detective Comics issues on the Hot 100:
Detective Comics #140 | Detective Comics #233 | Detective Comics #359 | Detective Comics #400
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