Don't forget that you also loose the RP option with this to talk or get into talks with others about what they wear and why etc.
I don't know about anyone else, but the only time I see anyone talking about what they wear and why, it's because of the lack of clothing that they wear, and the one player wants to find out how the other player got it.
However, having said that, there are those that believe that Role Playing is to talk with others in all types of uniforms to find out what episode the uniform came from, and there are those of us who believe that Role Playing is to become immersed in the environment where our choices dictate our environment.
Example 1: choosing the uniforms of their BO's and players around them in order to see a uniformed and disciplined environment according to the standards and era of their Star Trek experience to which they would like ot be a part.
Example 2: Completing missions that effect their environment and how NPC's would respond to that player.
Example 3: Completing a mission that will bring the player fame and recognition.