1st answer: not dead, according to my playlist.
2nd answer: been dead for many years already (mainstream)
1st opinion about it: fuck it, I can listen to it whenever I want.
2nd opinion about it: the radio rather play/promote mumble rap.
You know what, fuck the radio, and fuck the fake Hip Hop media.
With that being said, East coast styled Hip Hop relied heavy on samples.
And that shit cost money. Keep in mind that being a hustler is more important in Hip Hop nowadays..
..then being a dope MC
Ain't nothing wrong with making money
But a lot of these artists, ain't artistic, at all.
They can't rhyme, they barely rap, plus they ain't got shit to say.
Maybe 4 to 8 years of Trump will give 'em something to talk about.
The biggest factor in all this. (Heavy) Sampling died down starting in the late 90s and the early 2000s, and unless your name is Erick Sermon, Swizz, Dame Grease or P. Killa (might be forgetting a few) there weren't too many producers using original sound in NY. There's tons of original sound in the south in particular, that's why they been able to stretch themselves so thinly for over a decade.