So this is my setup, and it’s pretty cost effective. I have two 2Tb HDDs that are striped and one 500Gb SSD that’s alone. The games I play the most live on my SSD, any games I’m not really playing live on the HDD. Then I just move my games from one to another. I didn’t even have the second HDD for the longest time. I don’t bother with using the SSD as a cache anymore. There is no advantage in gameplay to striping a game, however updates and moves are faster.