"What can I do to generate income at a rate that other people will be happy to pay, and yet that I will be happy to receive?"

The best exchange in the free market is one that leaves both happier than before. I like your "customer" focus, Jerry.

" I’d play it because then that was the only new game I had. There's some kind of sadness that comes when you can just have any game."

It's a phenomenon called paralysis of choice (and hedonic adjustment). As adults, we have so many options that it becomes tough and actually stress-inducing to pick one. Plus, since you are no longer "forced" to wait until you save up to get a game and can have anything you want now, you "adjust" to that new baseline and no longer appreciate it.

I spend some of my time and effort everyday attempting to reflect on hedonic adjustment and control it. It's difficult and an ongoing battle.