Good keywords, store map apps are getting big with big box stores, ever try finding something at Lowes, Ive worked there for 9 years and still have a hard time finding some items because theymove them so often.whenever we do a reset we scan the planogram and it automatically goes to the app. If a company wanted a separate domain for this rather than using there home site you could get interest, especially being its memorable. Cant give a value though.
good luck
Joe T