That's what you have to make her understand, I think. Acquired knowledge has substantial value. So does productive hobby time that makes you happy. These don't show up in the checkbook.
If she doesn't appreciate those, tell her that not having a game to work on makes you want to go out and drink with your friends in that time instead. See if that lights a bulb.
This is true. You need to give her a frame of reference. Go out, spend 100 partying, come home, kick the dog, punch a hole in the wall, pass out on the kitchen table (your decision if you want to vomit everywhere.
It's been my experience that many women look at other women for how good the other women have it but look internally for how bad they have it.
If the worst thing you do is spend a little extra money on a hobby that brings you pleasure and keeps you out of trouble - they are doing pretty good.
On the other hand, if your frying bologna for a "special" dinner - you may want to re-think your priorities.
Either way - Baby Pacman sucks.