Just like car people buy off the shelf cars the customize them, many of us will buy off the shelf computers and upgrade their RAM, SSD, GPU, or CPU. Maybe all 4, or more. For desktops that aren't Macs, I usually buy used and plan on bring my own SSD and GPU at a minimum. For laptops (again that aren't Macs), I also tend to buy used and plan on upgrading the RAM or SSD or both.