I don't necessarily think he's worth it, but that's more or less the same as Jordan Poole, Jerami Grant, Tyler Herro, Cam Johnson, Kyle Kuzma, John Collins. It's a few million more than the Anfernee Simons, RJ Barrett, Jordan Clarkson types.
That's for a good shooter whose scoring has gone 5.5 -> 12.3 -> 18.5 per game and 11.6 -> 16.2 -> 21.5 per 36.
If you're SAS, you have to shoot your shot and bet on your guys. You're not a destination. I'd take Vassell over a bunch of the names listed above.