Buzz, my Ultra 1 200e, reports the following uptime:

  9:23pm  up 164 day(s),  6:31,  3 users,  load average: 0.00, 0.02, 0.02

Not bad for an old warhorse of a Sparc. Of course, he's not stressed at all, considering his load average. After all, he does nothing but run Apache in order to host this site, and I get next to no traffic (about 30 visits/day).