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rent-seeking and extracting money long term, on a regular basisrecurring revenue is what you're talking about, it's a financially desirable thing for them, but it's not the same thing as rent seeking. Rent seeking is not receiving payments over and over on a regular basis, rather it's a term economists use to mean making money from your position in the market without contributing anything of value to the market (without putting in any work, so to speak). For example, "monopoly rents" are the extra parts of the prices that monopolies can charge because they face no competition.
add-ons to a major expense like an automobile can qualify as rents because once you buy the car, you are essentially trapped into buying the add-ons from the one manufacturer, like being forced to get your car serviced at the dealer.