Try an nVidia Shield K1
OK, bit off topic, and really just a plug as I'm so impressed with mine (but it does have lovely marshmallow, working encryption and a good fit to replace a Fire as a media consumption device).
Main pitch is stupidly powerful processor, good screen, front-facing stereo speakers that go loud, SD card slot, working 'unified storage' (i.e. SD card can be used for any app), great reviews.
Also it's a bargain at £150 - which means it's playing in pretty much the same ballpark as the Fires, despite kicking them on every spec.
Fingerprint scanner aside, I can't think of any other android tablet at any price that's better.
One thing to note though, is that the tablet SKU is literally "just the tablet" - cover, stylus and even a charger are additional extras. I sprang for the cover, which *ahem* is a bit ipaddy in design, but with addition of magnets to allow more angles rather than relying on geometry of the folds.