I wonder if the five boroughs would (or could) move before the state. My sense is that the state is holding out because of strong police and corrections lobbies, and Cuomo is trying to not rock the boat. But NYC may have different motivations to decriminalize/legalize sooner. And if NJ legalizes, NYC becomes full of marijuana very quickly.

NYC is basically decriminalized at least from a usage standpoint. Walk through Brooklyn or Manhattan at any hour of the day and you will smell week multiple times on each block.

There are delivery services advertising via craigslist

NYC is already very full of marijuana

Sure, but there's a huge perceptual leap between getting weed surreptitiously delivered by some dude with a backpack you contact on Signal with an entire illegal supply chain stretching down the corridor to Florida and ultimately funding god only knows what sorts of unsavory enterprise up the line and asking your coworker to pick up an eighth for you on his way in commuting on the NJ transit train.

Both routes are illegal, but in one you're clearly acting shifty.