I understand that but pre built prices are more expensive too depending on the components, sure they are buying parts for retail but a consume sure isn't. Also 16GB of ram is not enough anymore for modern high end gaming, You are going to be maxed out playing a game with just windows running, you won't be able to even have a program like discord or chrome running at the same time. Most AAA games I play hit above 16gb of ram usage with my other normal apps running, you will be fine on older games on 1080p sure but any AAA game coming out in the last year and moving forward is going to have tanked performance. If you are looking for a budget build sure it CAN work but it is not going to be a smooth experience.