Hi Thomas, ok so I'm gonna give you a pretty simple non-career or financially oriented answer... Because it is awesome!!!
The people that you will work with will be super creative and super fun, and extremely talented.
The places you will work are usually very laid back, super fun to work, and have a great culture and environment
Dreaming or thinking on something...then actually building it is an incredibly fulfilling feeling and you will get to do that every time you ship a game out.
You will get to be part of a very cool community of extremely talented individuals that are pushing the envelope on tech and will be working on the latest trends.
Now it will be a very challenging work, you need to be great at collaborating with other people in your team, stressful release cycles, and some long nights!
But just focus on what makes you happy! if that does you won't feel at work a day in your life