Assembling of PC is the better then buying from market. The assembling is good because in that we have the chance to choose the best monitor, CPU, mouse, keyboard and others, but if we purchased it from outside then we cant get everything we want and second benefit is that the assenbled PC was not damaged at all but the PC which we purchased from outside was damaged sometimes because of some internal issue. The difference of the rates was not so much. The purchase PC rate was little bit less then Assembled PC.