I can certainly see why it would be a short-lived shop. I agree with DC-88; who want's to buy bras or other undergarments at Disneyland? I'm sure it was meant more as an atmospheric place, rather than a serious bra shop. I guess all of Main Street was more authentic back then, what with having drug stores, bra shops, and the like. Kind of interesting to have a store just there for show and not intended to be a cash cow, like Main Street at DL (and especially WDW) has become now.
...Uh...I sure didn't intend this to be a mini-rant, but oh well, sorry.