If the autographs were not valued in their time so as to be discarded, why would anyone have valued them enough to make copies of them? If your assertion were true, we should have no manuscripts, no copies, no record at all that they ever existed.
You miss the point yet again!
My friend Richard bought a brand new Mustang in 1965 for under two thousand dollars. He got rid of it a few years later.
Somebody would gladly pay twice the original amount for that car today. Why? Because the car HAS ACQUIRED collector's value. It has accumulated a reputation.
What is it about that you cannot or will not understand?
The writings of Paul were just letters from a guy that contained useful information. Period. He was a helpful mentor, teacher and fellow believer.
Those writings were copied because they were useful. Nothing more. The originals were handed around and wore out or lost. No big deal. Why?
Because they had NOT YET acquired a reputation as INSPIRED! That came only with time and exaggeration and enhanced storytelling being pumped into the legend.
Marilyn Monroe was sort of cute, chunky and weird. Now she is a goddess and an icon. Same person. Time and legend-making have been at work.
We have copies allright. Copies that differ. The difference can be traced to alterations in text by "helpful" translators who thought they already KNEW what the text was TRYING to say. They "clarified" it and passed it on. Families of manuscripts contain telltale clues.
Thousands of helpful errors!