I think that Samsung has lost its respect and loyalty for quality products taking the example of Samsung Galaxy Core 2 it has 1 GB RAM and MediaTek processor but instead of that it is not working properly when you will run more than 3 or 4 programs simultaneously then it will start hanging.
You cant think of running games like Asphalt Airborne because it will take almost 10 to 15 minutes in starting itself you can enjoy games like Candy Crush Saga which doesnt require any memory talking about the price tag it is having companies like Xiaomi, leEco, gionee etc.
Are providing better and more features phone in the same price tag and this is the major concern of Samsung because its 15 k phone is almost equal to 6k phone of different company which means that they are not providing cost-effectiveness with the product talking about camera and touch screen sensor They Stand nowhere in todays Indian market because companies like Intex who are providing smartphones in almost 4k are providing comparable features with respect to camera and touch quality.