Inflation and huge valuation of NBA franchise is the main reason why player salary mark up on insane level
Same with crypto prices back then that normally valued less than 10$ but right now most crypto already valued above 10$ due to the demand for investment purposes.
Basketball becomes popular already worldwide whole NBA is the most popular league right now. It’s normal that all their value will be insanely high.
And this is the reason why WNBA players cries about how low their salaries are. They don't understand the value yet of their league but soon, it will be with the steps where the NBA has been with. The NBA keeps on growing year after year and maybe if they say that the sports industry is in a bubble, it will be one of those that will be included in the popping. But it's true that inflation and other factors makes the league more valuable now and the contracts just keeps on increasing.