I built my first computer 2 years ago this month, but due to it being a cheap build even at the time, it was time to upgrade. My aim was to max out any current game at 1080p with great fps so that I would be set for 1080p gaming for a while and maybe upgrade to a 1440p monitor and be ok with for a little while.
While this build is not "future-proof" by any means, I'm happy with how it currently handles what I'm throwing at it. I steadily get 90fps on ultra, hairworks off for witcher 3, Battlefront is around the same with 85fps average. While temperatures are great in this, I will be looking to either liquid cool the cpu or getting two larger intake fans to ensure better temperatures when I overclock a little harder than I currently am.
The build is not exactly the price listed; I got the cpu at $250, the gpu at $270, and the power supply at $59. Shoutout to /r/buildapcsales.