If for absolutely no other reason, I just enjoy watching Trey play more than I enjoy watching Miller play. He's more active, he's faster, he creates more energy.
My original point (not that you've countered it), isn't that I think Kopp will or won't play, its that I hope he isn't needed to play.
We have 3 perimeter guys coming in, varying levels of hype and herald, surely one of those guys will be more productive than what Miller has given us??!!
On top of those guys, we have returning guys like Tamar, Trey, and Jordan. I'd say their capacity for improvement is greater than Miller's, at this point. What we've seen from Miller, is likely what would see next year. Surely 1 of these returning guys will have a productive enough off season to put themselves in a position to be more productive overall with their minutes than Miller.
So, if in early November we see Miller starting in our opening game, I'll be incredibly disappointed that there weren't enough improvements or that the incoming guys weren't good enough, to overtake what we know Miller will provide.