Not long after I moved to Virginia I switched from mostly using Kydex or basic nylon holsters in public to nice looking brown saddle leather holsters. On a rare occasion I still get out and about with either of the Kydex or nylon holsters depending on what I'm doing (such as going to the dump, running to the store in the middle of yard / vehicle work, etc.), but as a general rule my holsters are at least relatively pleasing to the eye. Although I really didn't have many issues when I carried using the black inexpensive holsters, I figured it certainly couldn't hurt to ensure that when people saw a sidearm on me, it was in a nice holster in a pleasant color, a color that doesn't tend to get linked with dark thoughts, evil things and shady business.
Although the change in holster look and type doesn't change one thing about the sidearm on my hip, if I can make a better impression when carrying in general, the sub-conscious effect of different materials and color choices may put a small number of people at ease who may otherwise perceive an OCer in a different, less positive way. Just about any person conscientious of sales tactics can tell you that packaging and presentation can greatly affect how people perceive an object or situation, so recognizing that I generally OC for the opportunity to educate (not to mention the potential deterrence factor) I prefer my packaging to the public be more pleasant to the eye. I certainly don't expect the same choices of others and would not request it, but I figure I'm aware of the differences in perception and don't mind making my own changes, so I go out and about in something at least relatively pleasant to behold.