Let's be clear here. I'm not talking a cocktail and a glass of wine, I'm talking about several bottles of wine that can come to $300+ easily. Are you seriously going to tip $60 for somebody to open some wine for you, ON TOP OF the tip for the food? I live in NYC, always have, and every restaurant I've been to here and anywhere else in the country has had separate areas on the bill for food and alcohol. I also don't know anyone who tips 15-20% on wine, so you must be hanging with some high rollers.
Been to Europe and lived in Asia for many years, and the service does not compare. Period. Unless you're a regular, or the staff thinks you will tip becuase you look like an American, the service will not be anything close to an average restaurant in the states. TBH, over the last few years I've seen a trend of adding mandatory tips to the bills at mid-high end restaurants in Asia. It's usually only 10% or so, but's it's still a rip-off since the staff probably doesn't see it half the time, and since the tip is guaranteed the service can end up being just as pathetic as the low end restaurants.