My wife has had one for two years no problems. I only bought the new one a couple of weeks back as it was 30% off and Tesco gave mse a refund on a faulty Hudl. So far I'm very pleased. I think all thee current Fires have SD card slots for storage. I think they accept up to 128gb cards, but you can have more than 1 card for extra storage.
hhmm.... sounds really good....
guess i*ll be doing some more research reg. which model/size tonite....
standard size SDcards are rather common over here, too...