Speaking of statistics, what do you think the average failure rate (e.g. caused by defects) of today's consumer electronics in general? Is it 1%? or is it 10%? Which one is acceptable to you? And if brand A has 10% failure rate (either OOB or premature failure) and brand B has 1%, which one will you choose?
Even at 10% failure rate, your chance of getting a bad unit is 1 in 10. So, it is no surprise that most will get perfectly working units. However, if one consistently getting more than fair share of failed products from one brand, what does that indicate the average failure rate of that particular brand?
So, statistically speaking, just because you get perfectly working products from the same brand is no surprise because the odds of having a working products favors you and many others. But knowing that if one brand consistently fair worst in reliability/QC than others, will that affect your choice next time?
I know I would. And it is not generalization.
Speaking of Samsung, my son's 1.5 year old Galaxy S3 has to be replaced recently. The problem is a faulty battery charging circuitry that causes phone reading false battery levels. Search on the internet, it appears that is a common problem with this phone. There is nothing I can do to fix it (already tried new battery, external battery charger and hard reset). The phone is in great shape and like new otherwise. Needless to say, that will be the last Samsung phone I will ever purchase. In the mean time, my 2-year old HTC One X that was dropped on the ground many times by my other kid and screen cracked still works just fine without any problem. And my original Samsung Galaxy S1 (AT&T Captivate) was released with a faulty GPS chip. The phone, and most of the Galaxy S1, was released by Samsung knowing full well that its GPS chip doesn't work in most cases (can't be used for navigation). Back a few years more, my first smartphone from Samsung, Samsung Blackjack 1, has a design defect that prompted AT&T to recall all the phones within a year or so because the cell antenna is literally just glued using some kind of paper clue to the circuit board and it will separate itself over time, rendering the phone useless. My Samsung Blackjack 2 has something went loss inside the phone from day one and its USB charging port is known to break easily (not on my unit). The only Samsung phone I owned that was problem free is the Galaxy S2. Not to mention my bad luck with a Samsung universal BD/HDDVD player which I paid $400 for (new) and it will lock up half of the time since day one.