BvBPL
Pour Decision Maker
By (a potentially poor) analogy, should a restaurant charge an appetizer fee or a dessert fee if you do not order that course, since you are occupying a place in their restaurant but since you are not consuming one of the products that a restaurant owner may expect you to consume, the owner isn't making as much profit on your dining experience?
The analogy fails because bringing a bottle of wine into a restaurant is bringing a competing product in which is fundementally different from choosing not to purchase food from the restaurant. I can see how your argument follows mine though.
I've never taken my own bottle to a restaurant, but I know a couple people who have a particular favorite type of white wine, and for birthdays they bring their favorite bottle if the restaurant they picked does not have it on hand.
Or they want to celebrate w/ champange and not want to pay $150 / bottle when they can get it for $50 plus corkage fee.