The other crazy part on any of the high grade SC 4's out there are the prices and price ratios of mega key's to the minor keys/ average books. Especially relative to Marvel.
As an example
X-men 1 in 9.2 vs a generic X-men semi key like issue 35 in 9.2.
Compare that to SC 4 in 9.2 vs a 135 (second GA Flash) in 9.2
Without getting into the particulars of the specific transaction above, my take on the market is that high grade SA DC's, especially semi keys, for some reason seem to do really well. Detective 359, Batman 155 and joker covers, Action 214 252, Wonder Woman 105, Aquaman 1, etc. So when a mega key like SC 4 in such nice shape doesn't hit the $100k mark like it's marvel counterparts, from a financial perspective, I'd think there was more up side (or less chance of downside) with the SC 4.
Ed