I'm done with the kindle ecosystem, except for one last jailbroken kindle that I use for reading, but once that dies it's nice to know options.

Open source software, open (to the owners) with default configs, open ecosystems, repairability, hackability, open hardware are all factors I look for across multiple devices now. routers & wifi, readers, phones, headphones, laptops, keyboards, etc..

They don't always have to hit every element - but the more they cover, the more likely I am to track and purchase them when the time comes.