As an aside, it's crazy to me to see a graph like this and remember the days when we couldn't get minor league hitting splits against L/R pitching. I've been on this site a long time :)
Yeah, at the time, the fee was $50 million, which I believe was more than any NHL franchise was worth.
https://www.milwaukeemag.com/milwaukee-not-nhl-city/
Article mentions they were willing to go as high as $30 million, which I didn't know.