For what purpose do you need a 2TB SSD as a minimum for yourself? You can get a 1TB for 100 dollars and install the OS, WoW, and just about every other AAA game out right now all on that one drive.
Guess what, games that don’t have intense loading times can be installed on another drive and ran from there, providing you even more space! 1TB SSD(OS, WOW, other current AAA games) 2TB HDD(whatever other games you want)