If you do it in your free time, it's an extremely cheap bag. People tend to overestimate the value of the time they spend not earning.

If you're spending that free time with family or friends or doing something else you value significantly, then sure, there's value to that time. If you're browsing photos on Reddit or watching TV, it's probably not that valuable if you honestly evaluate it.

Plus, you can get exactly what you want. There's such a rush from creating what you really want, and you get a little bit of that rush every time you look at your work again.

It is easy to consume. To create or make is so much harder, getting exponentially harder the higher the final quality needs to be.

Anyone who has ever burnt or messed up their dinner while cooking and still ate it will attest to the power of personal time investment.