I love my Linux boxes? Doing the dull, but essential, work for week upon week upon week with no complaints and no problems. A sample of uptimes from the herd I oversee (some at work, and some personal):

alpha:~# uptime
 10:23pm  up 401 days, 11:45,  1 user,  load average: 0.00, 0.00, 0.00

beta:~# uptime
 10:23pm  up 401 days, 11:32,  1 user,  load average: 0.05, 0.01, 0.00

wixer:~$ uptime
 22:24:19  up 201 days,  4:50,  1 user,  load average: 0.00, 0.00, 0.00

hm-lnx-nms01:~$ uptime
 10:24pm  up 299 days,  8:10,  2 users,  load average: 0.30, 0.19, 0.12

hm-lnx-nms02:~$ uptime
 10:25pm  up 299 days,  8:14,  1 user,  load average: 0.74, 1.24, 1.34

ns1:~# uptime
  9:43pm  up 125 days, 17:57,  1 user,  load average: 0.15, 0.04, 0.01