You are responsible for your own actions of course, but I'd like to see some takes on this if some fatal would have happened. I mean yes I know they are a business trying to make as much money as possible, but they have to have some sort of cut off limit when someone is already drunk. It's just poor judgment on their behalf to keep on serving. Though in this situation I'd assume theres nothing you can do but try to give them an alternative. Tell them you've found something online similar thats much less money. Ask them to provide proof of the billing price of the item. Don't let them rip you off!