Trent, it's hard for me to believe that all these decades later first mover advantage is the explanation, but then again I don't know. My own guess, I think PSA is better at self-promotion.
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Net 54-- the discussion board where people resent discussions. 
My avatar is a sketch by my son who is an art school graduate. Some of his sketches and paintings are at
https://www.jamesspaethartwork.com/
Last edited by Peter_Spaeth; 06-25-2022 at 04:00 PM.
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