Setting up a mining rig cost a lot now and there's also additional cost every month such as electricity bill. I prefer buying bitcoins, it is more convenient for me and instead of mining I'll use the money to buy cheap coins and sell it for a higher price later. A lot of miners now already shifted to investment, I have read that the mining business is not good nowadays. Also it is hard to find GPU/Videocard in our country. Maybe because of miners, hopefully they won't regret it later. I enjoyed setting up a RIG but not for mining.