Pretty much any IOT device with the business model of subsidizing hardware to provide some data based product paid subscription. Smart home camera/doorbell sy

Pretty much any IOT device with the business model of subsidizing hardware to provide some data based product paid subscription. Smart home camera/doorbell systems are good examples of this. I bought a house and didn't renew a ring subscription so the whole system was basically unusable and we replaced it with an 8 Dollar doorbell.