Would you join a team of computer gamers? Probably not. Who will pay your bills, feed your family, pay your home loan, etc? What kind of responsibility could you take care of?
But, what-if the game your designed / developed / testes / played for the next 2 or 3 years made you very rich?
I'm sure some of the developers of WOW (World of Warcraft) also hesitated joining the team in the beginning.
They have been rather successful, judging from this website: http://www.onlineschools.org/blog/unbelievable-wow/