if this coin ever gets to 1usd lol i will have 50 new rigs 
20 for me3 for me with single GPUs
and power will be problem, hard to get that much in a single room
i have 20 rigs of 4 7950s in 1 room ( under 20kw ) its got 8 20a 240 ringmains in there so i have room to upgrade lol
It must get pretty warm in there. Do you use the - autogpu setting ? How do you cool the place ?
EDIT : By the way, I just bought another BTC worth of PXC !