I think just the opposite about antique stores. Yes, there are some horribly treated razors on the shelves, but many diamonds in the rough are waiting to be found in antique stores. Search the forum for the beauties that have been found on the shelves.
I've searched the same stores & four months later found a beauty recently added.

I view antique stores as the "Klondike" of straight razors, ya gotta keep diggin !