Mom and I were talking yesterday, and we came up with a brilliant idea! It's just too bad that we haven't got a million or two to invest. Wouldn't it be really cool if somebody bought an old department store, say from the 1950s, and turned it into a consignment antique shop. Of course, not just any old antique shop with booths all over the place. Let people bring in only the nicest of stuff and set your store up exactly like an old department store. Have a clothing department, a shoe department, a toy department, a music department (including records, radios and sheet music) and so on and so on and so on.
Don't let individuals sell whole "booths" of stuff. Rather, let people consign as many (or as few) pieces as are in really nice condition. Tag everything with the consignment number, just to keep things straight, but make it look like a real department store. Don't sell anything past a certain date, and make your store look like that era. Cool thought, anyway . . .