I fee like (personally) mining are getting less and less profitable for every day passing by. Even if you keep up with what coins to mine and whatnot, to actually get an ROI takes quite some more time than it used to. You need to constantly update your hardware, and by that I mean constantly. The only way to make it as profitable as it was back in the days, I guess mine coins you believe will rise, but to avoid the hassle you might as well just throw in the same amount buying that coin instead...