> So you'd tip $15-20 on that $100 bottle of wine? I've never ordered
> such expensive wine, but I'm not inclined to do a full tip on it. If
> I just ordered a glass of wine, I wouldn't bother breaking it out -
> but the tip on an extra $100 is enough to get my attention.

Not to mention that there is a lot of tax on the wine, which varies
from place to place, plus an incredible markup.