medieval times Drink prices higher than a cruise ship and bringing your own glass no longer a discount dallas Texas

Ok show was good,actors good.food good. I have been going since my son was 6 he is now 25.Me and the wife went yesterday at the 8 oclock show. My complaint is the high drink prices we were charged.there is no prices on the elctronic sign at the bar ecsept for wine in a bottle from 33.00- hundred and something. We always bring our 20 ounce glasses we purched from medieval times and you get a discount.well when i went to the bar the bartendered thought it was cool i brought my own glasses.I about fell over when it cost me 30.31 for two drinks.so much for a discount for bringing my own medival times glasses.

 I know your in bussiness to make money but would you not rather have a fair price and sell more than piss off customers or at least put your high price up there for all to see.And at least still honer the discount for bringing your old medieval times glasses if you have been a customer that long.