This is going to be a big plus point for your own Bitmain Antminer if you do not need to put in it. Another reason why I like the Antminer is since it's not too pricey for what it offers. If you're only in it to the mining component of it then it won't do you much good. On the flip side, if you are going to proceed and use it like a miner for hardware, the fact that it is fairly cheap will go a long way towards keeping you motivated.