Okay I found the eqtraders page that demonstrates this very nicely.
In 2001 the trivials were this:
https://web.archive.org/web/20011213...ng_weapons.htm
Then in 2002 after the revamp they became this:
https://web.archive.org/web/20030618...ng_weapons.htm
For example, Forged Morning Star went from trivial 95 to trivial 68.
I'd say this needs attention.