He's widely sold out and I don't think you're going to find him for the original MSRP.
This is THE Captain America figure in my opinion. Great improvement on the last figures and I love the suit MUCH better than the AOU version (though that one is great too). The subtly of the details and the "toned-down" look from the AOU version fits Cap much better as both a superhero and a soldier. I know the white on the arms is the "classic" look, but honestly, that highlights his arms as a target. So the Civil War version is the perfect blend between the STRIKE and AOU suits, plus I HATED the magnetic shield gimmick that Whedon gave him.
Given that it looks like we might NOT see the Steve Rogers' Captain America in his "complete" uniform again with his helmet (re: INFINITY WAR Cap design photos), I think everyone has been scrambling to scoop this figure up. Unless we see a helmeted, bearded Cap (or his puts on the whole outfit or a new one for INFINITY WAR Pt.2)...this could be the last Rogers Captain America figure we see like this...and I believe that anticipation (and possibility) has been driving this figure to quietly sell-out.