The service aspect of your statement is interesting. I was just looking to make a reservation at a resturant that has a $30 corkage fee. Now, the corkage fee is way, way bigger than the cost of bringing my party some glasses (weirdly the corkage fee specificed 750 ml, which was surprisingly specific). However, it doesn't seem massively unreasonable given that me bringing in a bottle is probably keeping me for ordering drinks myself and that the place is tony enough that the $35 wine pairing is probably pretty good stuff.
But I'm not sure if just giving our table some glasses is the whole of the service. I mean, we are taking up space in their restaurant and are not ordering their wine the way most of the tables probably are. So we are basically denying them the profit they would have normally made on us. I don't know if that is worth $30, but does seem to be worth something.