This does beg an interesting question: Where do "New York" passengers come from. They're not all living within 20 minutes of Penn Station. Some are on Manhattan uptown or downtown, some are out on Long Island, Connecticut, Hudson Valley, Jersey, Staten... it would be an interesting survey to see. It might help alleviate congestion at Penn Station by add/remove stations closer to concentrations of customers.
For example, and this is purely example, if the numbers showed that 40% were Hoboken and 40% were Queens but only 20% at Penn, maybe it would make more sense to build a station on a siding near Sunnyside, make a brief stop at Penn, then dwell at Newark for a bit. I'm not advocating for such, just for finding out where the Penn passengers come from. The biggest city in the continent probably has much different ridership patterns than even the Chicago/LA/DC riders, let alone the Saint Louis and Rochester riders.
The new Acela: It's not Aveliable.