What can the Suns get for Booker?
An empty arena, a ton of canceled season tickets, and no hope of signing anyone above average in the future.
He's 23 years old and is averaging 25 ppg on 50, 40, 90% shooting. Only 4 players have ever averaged over 20 ppg while shooting that efficiently, Dirk, Bird, Steph, and Durant.
You won't get a better player than Booker in return so what would you want in return? Trading Booker would be the worst thing the Suns can do. They wouldn't get better, they'd get worse and be set back years.