I am surprised no one has mentioned the example of "Thirtysomething." They built up all kinds of advance publicity over whether one character would die of cancer — so much so that I tuned in to the episode in question, just out of curiosity, even though I wasn't a regular viewer of the show. Then, after what we think…

I think you've got it backwards. A few budget airlines — Frontier and Spirit were the ones I found — have started charging for carry-on bags, but that's not yet standard practice. Southwest's big marketing message is that they don't charge for the first two *checked* bags, like all of the big airlines do. Southwest…