It would be awesome to see an emphasis on home servers and server clusters. I run owncloud and I recently clustered it (two web server VM's, 3 mysql galera VM's; two pfSense/HAProxy VM's). All of this runs on hardware with Intel chips (one Xeon E3, one i7, one NUC - all Haswell). I might even get another server I have so many VM's.
Unfortunately, the biggest barrier to entry for running a home server is the internet connection, not the hardware. Dynamic IP's can cause your cloud to be unavailable until dynamic DNS updates and the cache gets cleared. My encrypted offsite backups to dropbox slow my upload speed almost to a halt (and downloads from my server when I'm not on my network). I'm already paying way too much money for a static IP.
Top Ten Things Overheard At The ANSI C Draft Committee Meetings: (6) Them bats is smart; they use radar.