Felix Salmon quells the crowds by showing that there's very little correlation between good reviews and price hikes:
From a consumer perspective, the lesson here is that price is no particular guide to food quality, as measured by reviewers' stars or anything else, nor do rave reviews mean that a restaurant will soon be hiking its prices. Some great restaurants are very expensive, but many mediocre ones are, too. … Restaurateurs, especially at new establishments, undoubtedly lose sleep about how many stars they're going to get from [reviwers Sam] Sifton and [Adam] Platt. But reviews rarely make as much of a difference as we might suspect — at least when it comes to the check.