Well not everyone (the first one was sent 7 years after the first mobile phone call). And if you want to consider it to be everyone, then it's an example of something where everyone has it yet it's not free.
> People do not want to use another messaging service
No, and therefore you need to offer something better to make up for the annoyance of changing.
I understand your point, it's the clearest example of a network effect and given two identical products the cheaper should be more attractive. However, this doesn't mean it has to have everyone and has to be free. Those are beneficial, but not absolute requirements.
Right now, I'd pay money for a decent messaging service with push & pull, with a simple API that supports sending images. It doesn't even have to have many users, I simply want this service at the moment and will pay money for it.
Well not everyone (the first one was sent 7 years after the first mobile phone call). And if you want to consider it to be everyone, then it's an example of something where everyone has it yet it's not free.
> People do not want to use another messaging service
No, and therefore you need to offer something better to make up for the annoyance of changing.
I understand your point, it's the clearest example of a network effect and given two identical products the cheaper should be more attractive. However, this doesn't mean it has to have everyone and has to be free. Those are beneficial, but not absolute requirements.
Right now, I'd pay money for a decent messaging service with push & pull, with a simple API that supports sending images. It doesn't even have to have many users, I simply want this service at the moment and will pay money for it.