User blog comment:Meta07/Why custom PCs are better than pre-built ones/@comment-4650748-20150329193327/@comment-4650748-20150330131029

That's quite a lot of money.

So, what are you going to upgrade? Hint: Don't upgrade the CPU! i7 does not improve the performance. https://www.youtube.com/watch?v=I8e0jnm39lE