As you probably found out, the Fire is a specialty device while the Samsung, iPad, etc. are fully equipped to do a lot of things. You've probably read about some of the Fire's issues, too, e.g. unresponsive touch screen, slowness, a wonky web browser, being easy to turn off accidentally, and lack of security. Some of those issues can probably addressed by software updates while others (like being too easy to turn on and off) would require hardware redesign. Many reviewers prefer the original Kindle design over the Fire if the objective is to read ebooks. They also point out that magazines don't work out well on a seven inch screen. If you want to play games, browse the web more than a little bit, and do a little bit of productive work, a full featured tablet like the iPad or Galaxy Tab would be a better fit. The iPad is the only product in this category that's been a successful seller. That doesn't mean that its competitors aren't good (although a lot of them are crap). However, it does mean that there's always a danger of products being discontinued.