I am working from the premise that "most" people use disguise items to get away with mugging people.
Given that, the economics and degradability of wigs and contacts seem out of wack compared to masks.
For example, a mask costs ~500c and lasts "forever".
A wig costs ~5Kc and has a limited number of uses. And, AFAIK, cannot be repaired by anyone currently in the game. (Admittedly I could becoming up short here ICly and might need to do more research.)
My suggestion is to make wigs more like masks in that they are infinitely reuseable.
It makes sense to have contacts be degradable. As anyone who has worn contacts will attest to. They don't last forever.
LEGEND