I want to build a gaming PC, but I am stuck on whether I should spend $100 more on an i7 6700k or a better monitor and stick with the i5 6600k I was originally planning on buying. I won't upgrade my PC until a couple of years, so I must make the best decision right now! Is the i7 worth it and better only for gaming? In other words, better CPU or better monitor that I will use to game with for a couple of years? Thanks!