I don't see anything wrong with it. It's been going on for years. You have the automobile putting out cars twice a year. It doesn't seem like they do, but the do. And the only thing they change might be a little bump in horsepower or add some feature.
Cameras and peripherals are put out 2-3 times a year. To stay competitive, you have to put something out. I think more people are noticing it because the news media are talking more about Apple gadgets. You didn't hear a lot when Motorola put out twenty Razr phones that basically did the same.
If you check the history of gadgets in the last 25yrs, the major buzz has been around Apple, Sony gaming/tvs, and Motorola. More people are buying into the hype though. So ehh let them eat cake. Cake 1, Cake 2, Cake version 3s.