We are having a small (~30 person) outdoor wedding, followed by dinner at a nice restaurant. The room where we will be seated is semi-private, meaning we have our own "wing" of the restaurant but it is not a separate room that is completely closed off to the rest of the restaurant. We're not doing dancing or cake-cutting, just a nice meal. We put together a menu from which people will choose their three courses from 3 - 4 options per course. For drinks, we are offering a red & white wine, 3 types of beer, and 2 cocktails (also any non-alcoholic options of course). These will be listed on the customized menus which will be at each place setting.
Obviously, the bar offers a much wider drink selection than this (and this restaurant in particular is known for its wine cellar and interesting cocktails). My questions are: do you think people will order other drinks, either at the table from a server or at the bar? How do we handle this, etiquette-wise? I feel like we are in a grey area; there is a cash bar 50 feet away but it is not OUR cash bar...? I want to be a good host but if my uncle orders a $500 bottle of wine I really can't afford to pay for it! Is it obvious enough what is hosted and what isn't? Thanks for your thoughts and advice!