1. Toothbrush
2. Tokens
3. Plz don't explode
4. ?
5. PROFIT
And who would pay for what data of the toothbrush? Merchants to place personalized ads? Life and health insurances to adjust their rates they 'need' to charge? Should the toothbrush order a new one? Maybe i will leave the old toothbrush online to collect IOTAs for the actual state until i can buy a new toothbrush from the collected iotas?
While i have no doubt that IoT will be a huge market i would be much happier it the examples from the lot of use cases would be better.
Disclaimer, this post may contain traces of irony and/or trolling.