There is always a new "setup" being produced so you need to do some research is what my suggestion is and see what is the newest and hottest mining setup. Mining tools are like new iPhones, apple is always coming out with new iPhones that everyone wants and needs. Mining equipment is always developing and if you don't have the hottest new equipment. Then someone else does and has the upper hand of having a contract. Any other comments regarding this? I would like to learn from others as well and understand their thoughts and opinions!