The paper is a subtle but distinctive part of the presentation of the image. While I'm no expert, IMO some of the textured surfaces really shine (figuratively) when the texture serves to enhance the image. As example, I've done some snow shots on a heavily textured paper. The surface texture does a heck of a job of adding a sense of 3d to the image. I also shoot a lot of longish exposures and find that a textured surface enhances the painterly like quality of these kinds of images, while, at the same time, eliminating or drastically reducing glare from reflected light.