Mining is quite profitable. If you know how to GPU mine.
Yeah it is profitable to do GPU mining but not with bitcoin mining. It's already not that profitable if you will enter the mining of bitcoins. Much better to do GPU mining with alt coins like ETH, ZEC or MONERO. It also depends on how much you are willing to invest but it's better if you will buy the rig that can contain 6 or higher gpu's.
For me I am not interested with mining business as I am not familiar on how to start it right, my focus now is to invest in ICOs and trade altcoins.
So far I'm getting a profit so I think it will be better if I will keep doing what gives me money, I believe I can still grow as there are still more room for that.
There are a lot of tutorials on youtube that you can follow and you can just join some alt coin mining groups so that you can guided accordingly. This type of mining is popular nowadays and there are some that really earns a lot monthly. But good thing in alt coin if you don't want to invest in mining, there are a lot of alternative such as trading.