It's funny how the "hard core" guys, which I would class most of you. Don't rate the ghost ball play that much but the majority of players actually love them. When I was living in Canada I loved being able to play rounds against my Dad in the UK when was convenient for both of us.
Anthony, I consider myself a hardcore player, but I ALWAYS have at least one ghost ball in action when I play a round, whether it's just a casual "check the course out" round or a Society Tournament round. It helps give the course a sense of life elsewhere, even though I see nothing more than ball in flight, bounce, or roll. I'll grant you that I'm likely in the extreme minority of those who consider themselves hardcore players, yet play this way.
Thanks for the link on the 3D grass. I'm curious to see how all of this is going to look with the lighting changes. There's room for improvement there, IMO.