But if you're worried about greed ruining a good product, Kindle Scribe is an Amazon product and Amazon isn't exactly known for being a champion of its customers (though maybe I'm unfairly conflating their web store with the tablet branch).

> or put it in writing that they will not change their service offerings

Also I put zero faith in what a company puts in writing unless it's in a legally binding contract. Anything else is trivial to change or ignore.