How much of it is confirmation bias? Pens, I use various Uni, few $10 fountain pens and my son as 40c fountain pen. All of them work decently well, some break w

How much of it is confirmation bias? Pens, I use various Uni, few $10 fountain pens and my son as 40c fountain pen. All of them work decently well, some break when we drop them or loose the cap but nothing egregious. My wife is using 6 year old Oneplus which give no sign of needing replacement. I have 20 years old toaster. I used my LG washing machine for ~12-13 years before replacing it, same for my AC (>15 years)/fridge (~15 years) etc. Now I have had few bad apples, laptop that was junk in 2 years. AC that kept giving trouble.