@99semaj. I think much of what you say is correct.
This seems like a device that is really geared towards media consumption even though it will run Android apps. I think both Android tablets and iPads, as well as Playbooks, are more app centric. Let me put it this way, I don't think a hospital looking for tablets to hand out to doctors to do their rounds with are going to consider an Amazon Fire over any of the other tablets I mentioned.
Also, this does not offer the 'Android' experience as envisioned by Google. Google is no where to be found on this device. No Gmail (just a standard email client), no Google calendar (no pre-installed calendar from what I understand), no Google maps (doesn't even have a GPS), etc. This may turn some people off.
Also, no cameras. I think cameras, especially front facing ones, on tablet devices will become more important as time goes on.