Probably a bit of a language barrier. I should have picked up on that and been more explicit. I'm just saying that a guy selling stuff commenting on repairs and reliability is not a credible authority. He could be expressing personal biases or simply working with a small set of data. Here is a personal anecdote for you...
Around 1984, I was working in a department store. One day I walked in and there were a dozen Atari computers in a carriage at the service desk, "All defective," the manager complained. The problem? The computers were all reporting 48k of RAM in the memory test while the box clearly advertised 64k. The manager did not know the other 16k was running the test program.
Both manager and purchaser had a very unrealistic impression of Atari computers before I explained the defect. As it turns out, I have a couple of those computers 30 years later and they still work fine. I might believe that these computers are very reliable. Just the same, my small pool of data is insufficient to calculate the reliability of these computers any better than that manager had done in 1984.
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