My family has owned many Sony products and the only ones to break is one Vaio laptop and of course the PS2.
I only the PS1 for 6 months before the PS2 launched, so I had not problems with that.
I am on my third PS2, although I only very rarely use it now (PS3 is here) the first one did not break exactly, it simply would not play Blue discs, such as Mashed, so I did a trade with Sony which meant that I got a reconditioned one for Â£60. That one lasted until about midway through last year or the year before, but that one probably broke from overuse, I would guess that occasionally I left it on for about a fortnight.
In general, all my Sony products have worked really well, once I dropped my Sony camera down a hill though loads of bushes in the dead of night, then it started raining, with the camera still on. When I found the camera the following morning it had a few scratches but worked perfectly, it was remarkable.
For note, I have had two Sony phones, four Sony Vaios, PS1, 3 PS2s, PS3 and 2 PSPs (for me and my brother)