I think adding 12GB of RAM to average home desktop computer can be a good idea. I read a few forum posts where people complain their computer with 8GB of RAM is using up most of the RAM when browsing the web with web browsers like Google Chrome and Firefox with many tabs open. Adding 12GB of RAM may prevent some of these RAM related slowdown problems. People also install a lot of Computer Security software like Antivirus, Antimalware, Antiransomware, firewall, proxy software, VPN software, File backup and recovery software and encryption software which now uses more RAM if they are all running at the same time. If you want to be more protected from malware, and hackers having a lot of RAM is important for staying protected, but not getting slowed down by the security software using too much RAM because you only have 8GB or less RAM, and many other programs opened. More people are also playing PC games, and editing large video files in 4K which will work faster with 12GB of RAM.