You have no time for using the rig, but you buy a 2nd rig?
Yes indeed. I like the mining, but I don't have time to switch a few times a day to mine the new coins.
Right now I'm having holidays for a week, so now I have time to build a second rig.
In a week, I have school again and then I don't have enough time for mining. So I'm helping other people out.