G'Day Steve, a big
Mate in my experience if the missus isn't complaining about pinballs then it will be something else. The very fact that we are male makes us guilty from birth.
If you add up what the average female spends a year on makeup, hair/ beauty appointments, new shoes,clothes, $15 bottles of shampoo, handbags etc, compared to us blokes then I'm sure it would be in the Thousands, so going by that I reckon buying 1 pin a year( which will hold value pretty much in case you need to sell it) will still fall short of the amount they spend.
Not to mention the pure fun and entertainment value in keeping the kids amused and not hassling her