Here is an interesting graphic comparing beer prices for all 32 major league stadiums. My hometown Cardinals charge the second highest price per ounce, right behind the woeful Red Sox. If one were to plot teams' current winning percentages against their beer prices, one would see a weak positive relationship. Further, if the Red Sox are excluded as an outlier on the grounds that their high prices are largely driven up by the in-game beer demand of their multi-millionaire players, the relationship would be statistically significant. This is apparent from the chart below, which plots the teams' current winning percentages against their beer prices per ounce (the red square is the Red Sox).