The reason the red leather wares so badly is because it is a different leather or at least get a different treatment during their making. If you have the red one and say the navy blue they both look and feel totally different, and I mean apart from the colour. I returned my red and kept my navy, brown and black.
I noticed that as well. It feels totally different. Even between the brown and black it felt different. I'd say my brown one felt the best but I like the black look better!