So Riot Updated Cho'gath's Classic Skin Texture a while ago...

Gentleman Cho'gath is Old Classic Skin Texture + Top Hat, Suit and Monocle. Nightmare Cho'gath is 10 seconds in Photoshop changing the Old Classic Skin Texture from Red to Blue via Hue and Saturation adjustments and what not.

WHY WERE THESE SKINS NOT UPDATED ALONG WITH CLASSIC CHO'GATH'S TEXTURE UPDATE?