Just to put the in context, you would need to play every single day for roughly 6.8 hours in order to rack up 2500 hours in a year.
To further contextualize, in the U.S. a full time job, that is a job wherein one works a combination of days each week (typically 5 8-hour days but sometimes 4 10-hour days) is around 40 hours each week, or 2080 hours a year.
The typical worker also takes vacation, sick days, etc equaling between 1-3 weeks each year. Meaning they may not even work an actual 2000 hours each year due to time off.
So you are putting in more time to WoW each year than the typical full time worker is to their job.
I do one game at a time, but about 2500 hours per year.
I've got 5 weeks of paid vacation and 40 hours work week.
I don't like traveling, I don't want kids, I don't like going out on weekends, I don't watch TV or series on Netflix. Minor optimization on adult chores such as meal prep and a 10 minute commute leaves a lot of time for whatever I want.