I originally started out hardware boxing on 5/6 PC's playing WoW, DAoC, Aion, AOC, etc. I found honestly that playing all on one PC was MUCH easier to manage, and I could use certain things to my advantage like on the fly switching of your main character. I couldn't do that easily when I had to kink my head over 3 feet to one side if I wanted to run one of my alts if I was hardware boxing.