Or you could just save your installs to a portable hard drive. I've been doing this since my 512 ssd fills up pretty quick. The main reason why I use this Steamcache setup is a 3 days lanparty on a ...
Definitely a nice option for some, but personally I hit a point where I was wondering why I needed hundreds of gigs of games installed on my system at any given time. Sure it was nice to brag about ...