Jimmy Haslem, owner of the Cleveland Browns, is purchasing Marc Lasry's share of the Bucks at a total valuation of 3.5 billion. Lasry and Edens purchased the Bucks for 550 million in 2014. So nearly a 7 fold increase in 9 years.
As a comparison, Ishbia just purchased the Suns for 4 billion.
So no need to feel sorry for owners when they have to pay luxury tax.