I've not had a single console break or otherwise stop working. This includes the fragile PSP. I don't see how they can break so easily, actually, since all you need to do to keep them alive is not frantically punch them when you're losing.
my first PS2 broke when my brother tripped over the cords to answer the door, and my dreamcast and xbox just stopped reading CDs. I didn't drop them or run any sort of mods on them. They just started to take 5-10 tries per cd to get them to work, and performance was iffy even when they did. Cleaning the laser didn't fix them so I just traded them in since technically they were still working.
I think my most satisfied case of repair/replacement was from sony, I sent them the ps2, they sent one back plus a controller, power plug, and av cable (basically new console in retail box).
EDIT actually, i never had a DC break, that one was stolen, it was a second xbox that died on me.