if you do not like to take risks, maybe it can buy and hold bitcoin for the price increases.
but, mining ETH risks also not too big, just buy mining tools, building mining RIG and buy a few VGA, I think it is good enough for it.
or take a little risk and investment in ICO's, it could be huge profits, can even get a 2-3 fold.
The mining Ethereum is get less profitable now, especially for the people with high electricity price and old GPU.
ETH seems to be a coin that will go down in the future, I would not mine it nor invest in it. The coin I think that will prosper on the short term is stellar and bitshares. Other coins seems to be rip of off others which means no innovation and no future.