[vel0city]

I don't think many people would want some 2kW+ system sitting on their desk at home anyways. That's quite a space heater to sit next to.

[Tor3]

I should look at the label (or check with a meter..), but when I run my SGI Octane with its additional XIO SCSI board in active use, the little "office" room gets very hot indeed.

[bonzini]

Also the noise from the fans.