There are a number of places in Metro NYC that you will need to make reservations a month (or more) ahead..
Even some established dinosaurs..... Peter Lugers on Friday or Saturday evenings prime seating's are reserved months ahead...
Per Se, Le Bernadin so many awesome places to eat in the Metro NYC area...there are Pizza places that people wait on line for hours to get a pie.. first come first served... when they run out of dough there is a line full of disappointed people..
I remember when Jean George Vongerichten opened his first place in NYC (Vongs) ... my mother got me reservations for my January birthday.... In March...
And you cant walk in to
11 Madison Park and expect to get a table....