<There's a depth thought in there - does someone have it?

Maybe a depth charge, but no thought. Those must have been heady times, to
see your whole neighbourhood renewed, almost overnight with the simple, and
so affordable miracle siding that would be maintenance free, preserve your
house forever, and be tangible proof that you and your neighbours had the
pride, the foresight and the means to move with the times. To do less would
be, may I say it, un-American!