Just for reference, $25K spent in time and then being able to talk intelligently about modern iOS development on a podcast that generates $16K an episode seems like a good investment.
And “time isn’t money”. It wasn’t like the time he spent developing it would have been spent working on something else.
He spends maybe 1% of the time talking about his apps, that really isn’t the reason.
And time is definitely money, or rather, money is time. If you already have an income stream that is more than enough for your chosen lifestyle, spending lots of time on something that might give you a tiny bit extra seems like a bad choice. Why not spend time with his family, travel, take up a hobby, or at least write an app that is just for fun. Or one that has some sort of chance of making it really really big. Obviously up to him, but still, hard to understand.
Programming is a hobby for him. He’s also not traveling. He has two small non Covid vaccine eligible kids. Hardly any Indy app has a chance of making any money in todays App Store.
And “time isn’t money”. It wasn’t like the time he spent developing it would have been spent working on something else.