I have my Vic20 from 1981 until 1990 and then gave it to my brother who sold it 3 years later. My C64, I have from 1984 until 1988 and then gave it to my brother when I replaced it with a 64C, which I had until 1995 when I sold it to someone who had one that just died.
My Amiga 2000, I have from 1988 until 1993 when I sold it to another student to buy one of the first USA released Amiga 4000/030. I sold it in 1996 to a video editor when I needed to make rent. I really miss her.
I've since gotten a better job and re-acquired an A1200 and an A4000/040. (I'm working on re-habing the A4000 but the A1200 is rock solid.
Basically, I've never had a Commodore product that I bought new die on me - ever.
Well, My brother did end up having the C64 I gave hime die when he let clothes fall on top of it and it over-heated.
I still have my old Excelerator Plus disk drive and just hooked it up to my PC to rip my old collection of C64 disks. So far about 99% have no errors. Which is simply amazing to me.