Do I need multiple copies of cards out of 1989 Donruss? No - but when you get certain player cards, it should at least be a bit easier to trade them away.
You can zoom in and see the Inc and * variations as you like, there were examples of all four in the pile of cards. As much as I disliked Greg as a part of the Braves, his abilities were undeniable. Glad his entire career wasn't with Atlanta and I can look back at this card fondly from his pre-Brave days.
Overall - if I am going to end up with almost 20 copies of the same card, I could have done worse. Too bad I only needed one for the set build.