Re f), It's probably a culture thing. Samsung used to churn out >200 phone models per year. Want long term support and thorough testing? Non-existent. Re b),

Re f), It's probably a culture thing. Samsung used to churn out >200 phone models per year. Want long term support and thorough testing? Non-existent. Re b), It's commonly accepted by a lot of people in China, Taiwan that it's Samsung's tactics to maintain market domination. If you believe the anecdotes, like this one https://www.reddit.com/r/Android/comments/4fnp86/why_does_htc_avoid_amoled/d2axkmj?utm_source=share&utm_medium=web2x https://www.reddit.com/r/Android/comments/4fnp86/why_does_ht... Samsung cut the oled supply to Huawei when it threatened Samsung's mobile phone market share, the same reason why Samsung screwed HTC before.