True my friend. I run 15 right now on 2 computers. Getting about 160-175 million a day (on a full 24 hour cycle). Room is a mess but here is my setup currently. both computers are X58 setups running GTX 580's 3GB and on Crucial m4 128GB SSDs. Just using one monitor for now and swapping the cable from one computer to the other along with mouse and keyboard for maintenance of the bots.
4 of those bots are leveling, I will be pushing 200-220 mil a day soon enough. my goal is to have 10 bots on each computer, so 20 in total. I don't know how much longer we botters have before the first ban wave hits but I have made so much more then I invested already that It's all gain at this point. those 2 computers you see there were built by me using pure gold farmed money. I of course ... know where to find great deals and saved a lot by not buying brand new components. Have to know how to invest and how to get those bots to 60 asap so they can recover your investment quickly before getting banned. so far everything has been going great. A few crashes here and there but demon buddy is doing very well compare to first release date. pretty stable for me right now besides a few bugs that I avoid by setting up the bots correctly. 8 of those bots are using IB so i expect those to go bye bye first but they been going 24/7 for about 1 month now.