Remember those big blue VU meters on consoles and power amps? Not very accurate but very sexy. Studios still need a good visual tool for monitoring audio levels, especially now with the crazy wide dynamic range with digital. Dorrough meters are expensive, but they are a lot more precise and informative than VU meters.
Sure digital recording software has good level meters but these would be most useful after mixing and after conversion to analog.
8" X 3" - That's a good size meter! or there's the 23" X 8" large format.
http://www.dorrough.com/index.html