I remember in Morrowind that getting out of your armour when entering towns was an important thing, if you wore cheap slave cloths or rusty armour, peoples disposition towards you would lower, and they would even make comments on it when you walked past. On the other hand, if you wore exquisite clothing, people would have a higher disposition towards you and would make comments on how nice your clothing was. For some strange reason this hardly had an effect in Oblivion in comparison to Morrowind, and i would love it to be given some attention, for the sake of immersion.