Maybe it was the perfect night (freezing damp cold) to embrace the buzzy charms and delicious BISTRO MODERNE cuisine of UES (NYC) restaurant staple Demarchelier -for the first time... But afterwards...we wondered why this ideally located gem- a few blocks from Manhattan's 'Museum Mile' (and mass transit) wasn't a regular dining destination...as it clearly was for the patrons partaking the recent Tuesday evening we went.