GBA Game Collector question

Board 8

I have a nearly complete Pokemon Emerald, the only thing Im missing is the cardboard insert. My question is, from a collector standpoint does it hurt the value of the game if I were to get a reproduction insert? Does anyone even care about that part, besides it just being there?
I find it kinda bussin, I find it kinda cap
That the dreams in which I'm dying are the ones that kinda slap