For example, I could have built a single board CPU only miner getting a higher hash rate for about 1/3rd of the price. I could have bought 3 graphics card capable of roughly 75x the hash for the same price. I'm not trying to sound like a dick when I say this, but if you are not able to figure out how to mine with an old machine or build a rig and just sell your hash to nicehash, you are better off just buying some bitcoin and holding it.