I may be, but I don't think most people think of those things you list as having 0 marginal cost, as they're tangible goods or services (although the listings one is a bit sketchy, I think a lot of people view being charged a lot for access to that sort of info as highway robbery, despite its very real value). The cost of information has been anchored at $0 repeatedly over the past decade, and we now use that reference point when deciding the monetary value of new info.
I think I was probably off the mark in my post. It's likely not the marginal cost they're considering, it's likely just that $0 is the new reference cost for info in many people's minds.
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I may be, but I don't think most people think of those things you list as having 0 marginal cost, as they're tangible goods or services (although the listings one is a bit sketchy, I think a lot of people view being charged a lot for access to that sort of info as highway robbery, despite its very real value). The cost of information has been anchored at $0 repeatedly over the past decade, and we now use that reference point when deciding the monetary value of new info.
I think I was probably off the mark in my post. It's likely not the marginal cost they're considering, it's likely just that $0 is the new reference cost for info in many people's minds.