Short answer : yes.
Long answer : Since this is posted in the beginner's forum, I'm assuming you're relatively new to programming games ( or at least in Blitz ) in which case you're running before you can walk.
Finish a few games and worry about it then. But to be frank, if your only interest is making money, and you're not prepared to fail miserably, find another job. The games industry isn't even a reliable source of income for those who work for big developers, and it's certainly not a reliable source of income for indies. You would have to be A) Very good and B) very lucky.
Long answer : Since this is posted in the beginner's forum, I'm assuming you're relatively new to programming games ( or at least in Blitz ) in which case you're running before you can walk.
Finish a few games and worry about it then. But to be frank, if your only interest is making money, and you're not prepared to fail miserably, find another job. The games industry isn't even a reliable source of income for those who work for big developers, and it's certainly not a reliable source of income for indies. You would have to be A) Very good and B) very lucky.