I wonder if they were that green when new or if time has taken a toll?
Also the 17" sets have a clear screen so that would indicate they didn't intend for the 21" models to be green but the type of plastic may deteriorate with time.
It has to be harder on the CRT as well having to be cranked up to compensate for the darkness of the cover.
The Hoffman is a little greener but also a lot clearer because it's actual glass and not 50 year old plastic, though there is a lamination layer.
