It can go however far you want. Even if you say you'll play these games for the rest of your life, at $2/mo buying it only becomes more economically worthwhile if you entirely quit getting games entirely. I emphasize, economically. Now, if we take Game Pass, depending on where you live buying might be more worthwhile if you get 2 or less full-priced games a year. In my country Game Pass is cheaper than 2 games