It's all about the upgrades
I'd like to see low power CPU's and motherboards being sold that don't require any fans to cool etc. They could make CPU's with small dye footprints using the latest nanometer processes. That 45nm stuff cut into very small peices but still powerful enough to run a small server at some old P3/4 speeds would be fine and require little or no cooling and a lot lower power rating. Big power components generates heat and requires cooling thus more fans which also need power and more noise. OK if you are an enthusiast but not needed for some backend system you use to access storage or to serve up the odd webpage.