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> easily replaceable service > to compete you'd need an entirely new card system that would be incompatible with the others, and thus your card would be unusab
by spdionis 8y ago
> easily replaceable service
> to compete you'd need an entirely new card system that would be incompatible with the others, and thus your card would be unusable in most places
That's basically the definition of hard to replace.
- MagnumOpus 8y agoTechnically easy to replace but a hard-to-displace monopoly (duopoly) solely due to network effects. Like Facebook, eBay or WhatsApp in the tech space.