I am very comfortable financially. I however choose to avoid these games as much as possible out of principle. I buy 2L drinks, and refill a large cup in my home, instead of paying $2.99 for a fountain drink at a convenience store. We gave up buying the occasional candy (wife loves chocolates like M&M's) at convenience stores or supermarkets, so she buys them at Dollar stores for a fraction of the price.
On a happier note, I can buy Top Tier gas for $2.50/gal., or even less. Thats a way bigger deal than the downsized products people occasionally buy.