Just here to comment about 'tablet that doesn't send your data to big corporate'.
If that's an Android tablet, you'll always have Google spyware. If it's <manufacturer-name>'s (that is not Google), then you'll have the spyware of them both.
So, I, personally, would've go with one that have a custom ROM. If you're not open to the idea, maybe at least something created by Google.
They can't. People really abused the option. If you read their posts, they sound like they endured it for a really long time, and were forced to disable it.
Just here to comment about 'tablet that doesn't send your data to big corporate'.
If that's an Android tablet, you'll always have Google spyware. If it's <manufacturer-name>'s (that is not Google), then you'll have the spyware of them both.
So, I, personally, would've go with one that have a custom ROM. If you're not open to the idea, maybe at least something created by Google.