@JTT,
A burka takes more material than just about any other sort of a clothing item you could think of aside from an imperial wedding dress and leftists don't seem to be getting invited to many imperial weddings these days. ...
Aside from the material for the burka, there's the added expense for the dynamite belts, grenades, and other related paraphernalia items which are worn under the burka itself. Have you tried buying dynamite or grenades or anything like that recently??