The Analog.Cafe has a nifty database for tracking film prices of 29 different film stocks sourced from a number of online retailers. This average price for a specific film can give you an idea of whether the roll you are looking at in a local camera store (LCS) or elsewhere is a real deal or maybe a bit overpriced. The decision to buy is yours, or the decision to search for something else that might suit your wallet.
Check out the Analog.Cafe Film Price Tracker.