I've only completed one season so my experience is limited, but I had one player with an opt-out (starting pitcher Dalmr Mazi). He had the option to stay and get paid $5.5 million, and I was stunned when he left. It screwed up my already-screwed-up rotation, and it wasn't a great financial decision for him either, as I see that he just signed a 4-year deal at $4.6 million a year. So from my limited experience it appears that when a player has an opt-out, he takes it, whether it makes any sense or not. If that is indeed the case, then we should get rid of the opt-outs. But of course other GMs may have had completely different experiences.