At one point in the early noughties I was an avid Everquest player. I discovered after years of playing a command line that showed me how many real days of playing I had wasted of my life. It was 153 days.
At that point I didn't play again. That's almost half a year 24/7 of no progress and escapism. That was a significant number to me. I make a point now of refusing to play any game that has no end.
That is a number to render all other numbers superfluous. From now on I will only play NeverQuest or ExtremelyLimitedQuest.