In Turkey, for me the biggest bar bill always happens at the end of a boat trip. I sometimes wonder how the boats can offer a day out with lunch for £5-10. Then I remember what my bar bills usually total.
Otherwise, I'm too tight to blow money in really expensive bars. I like my beer (and wine) but would rather have a half-decent £10 bottle of wine at home rather than a rubbish £15-20 bottle in a bar/restaurant.