You don't buy a marriage. If you try you are doing it wrong.
Finances are a component of marriage, not the driver.
Finances are a component of marriage, not the driver.
How could I miss that it's fundamentally part of everyone's martial vows?? /S
Marriage is about love, companionship, and children. Particularly because of children there will always be a significant economic component. But it's not the driver, it's a supporting component.