Its funny.. 3 of the books discussed in this thread I found in one batch last month: WW184, Spectre 54 & Static 45.. It was a huge modern collection that was CLEARLY cherry picked as there were no known key issues in the 20 or so boxes offered. But it had TONS of unknown keys such as these, also 3 copies of Akira 35-38, Deathstroke 58-60, Batman Strikes #35-45 (what? you, didnt know about these??) and I cant begin to tell you how many 2nd print variants of big books (Yup including the big one Captain Marvel 17, which is, well, somewhat a better known key hehe)