This is par for the course at the annual beer event, which will hold its 182nd gathering beginning Saturday. Since 1985, Oktoberfest German beer prices have risen more than 220 percent, considerably higher than the 69 percent jump in German CPI.
What hasn't skyrocketed is the number of breweries selling beer. Only six meet the event's stringent rules, which include strict adherence to Bavarian purity requirements.
Read MoreYour favorite beer might cost more soon
There's evidence rising prices are impacting attendance.
While the event regularly draws more than 6 million visitors per year, attendance fell last year to 6.3 million as beer prices cracked the 10 euro threshold for the first time. Sales per visitor also dropped.