The Kindle has no SD port
The old 8.9 HD had a mini HDMI - the new one does not, but it does support Miracast on a HDTV so equipped, or you buy more stuff to make it work.
No Play Store.
When you start adding mem and 3G/4G it does get pricey so the payment play works for those interested.
I suppose you could WiFi connect to a WiFi SD box for more storage.