There are a number of great options for bottomless cocktails at brunch in Manhattan and Brooklyn, but Maya is the only one I know of that offers never ending tapas as part of the mix.
If you aren't accustomed to dining out in NYC, $49 may seem a little high for brunch. Trust me, it is not and you certainly get your money's worth at this upscale Mexican restaurant. There is a good selection on the cocktail menu with the Agua Fresca being my favorite. The margarita comes in at a close second as it is made with fresh ingredients rather than a syrupy mix. And the tapas selection offers a good selection, especially if you have a few vegetarians in the crowd. You should definitely indulge in the Pan Dulce.
Its location is at the start of the Upper East Side near the Queensboro Bridge is nice as you can easily walk over to the East River Greenway, take the tram to Roosevelt Island or walk West to Central Park to sleep off your buzzed food coma in Strawberry Fields.