How about that...
$ uptime 18:19:53 up 208 days, 2:51, 2 users, load average: 0.32, 0.16, 0.10
Not bad for my old crappy desktop machine running on the floor in my apartment without any kind of backup power supply or anything. I run it with the case off all the time, and wires and components are spilled out all over the floor. It's a wonder I haven't crashed it yet just by stepping on it.
Every couple months I notice my machine is running slow and look at
top and it turns out X or some stray KDE app is using half a GB of RAM or something, so I restart it and I'm back to normal. Takes a long time to get to that point though.
Weird thing is, this doesn't even impress me any longer. I just take it for granted that Linux works.
Meanwhile my Vista machine locks up constantly. How can anyone at Microsoft sleep at night? (Answer: On top of huge piles of ill-gotten money.)