1. I'd have to get way too invested in the game to actually get something out of it. Which tends to mean that other friend groups, and RL people get ignored by me from time to time, so I can boot up, and waste time in an aged game.
2. As others have mentioned, I miss a couple of peeps, and those truly unique random encounters.
3. I feel like a hindrance to myself, and others. This has plenty of layers I'd rather not get into.
4. Other games eating up my time. I'd rather have some drug addiction at this point.