Some of the copters on and around Long Island appeared to be sight-seeing with owner's names like Snackbar LLC, Scenic View, etc. Saw a JP Morgan Chase copter flying north. Some were for transportation of rich people from NYC-area airports to homes at the end of Long Island. Traffic is very terrible and maybe rich people bypass traffic with private choppers?
I'm back on DC area and N87ME is a Medevac from Salisbury MD to DC. Flew, landed & waited for a while, got airborne again. Prob standard medevac or patient transport I suppose. 160MPH is VERY FAST for most choppers but you have to look up their specs to find out the max design speed.