Lifetime employment.
You never have to worry about hitting your head when you stand up.
Even if your son is a complete jerk, you can count on a five-headed dragon to keep him in check.
You always win limbo contests.
You are your own boss.
To amuse yourself, you can drag unsuspecting young people into your dimension and laugh as they try in vain to get home.
You can come and go as you please, talk nonsense, and walk on water/lava/thorns.
You can be bald and have long hair at the same time.
Since what you say never makes any sense, you never need to know what you're talking about.
And the number one advantage of being Dungeon Master:
Three words: Senior Citizen Discounts
If u guys are fans of dungeons & dragons then this would make sense !!!!