I like him enough that I've read nearly everything he's ever written but I'd agree with his own statement.

"I am the literary equivalent of a Big Mac and fries.” -Stephen King

He uses slang from the 80's for kids in modern times.

Teenagers today don't sound like the old TMNT cartoons or Bill & Ted. Also, iirc, the kid in Fairy Tale goes to a video game arcade at one point.