Regarding MMORPG, I currently have an active subscription in FFXIV, SWTOR, and WoW, and I limit the things that I do in each game as I'm not interested in doing everything there is to do. At the same time, the things that I do want to do take some time for one reason or another, but does not takeover the entirety of my free time. I like it like that as it gives me time to pursue other interests, like other games.
In FFXIV, I currently limit endgame activity (beyond continuing MSQ) to mainly just getting tomestone gears, normal raid gears, and alliance raid gears. Outside of that, I sometimes participate with what people in my FC are doing, and that can vary depending on what they want to do at any given time, which has included (at the time current) extreme trial and savage raid in the past. That's plenty enough for me to do to justify more-or-less continued subscription for the past 2.5 years.