I've spent the past two years remaking my first game from 2013. I know that even though it has come a LONG way since the original, it probably won't sell, but I do it anyway simply because the original was a pile of hot garbage with a terrible engine and I wanted to do better.

Sure, bringing in some extra cash would be nice, but at the end of the day, I get precious few hours to myself at night and on the weekends, so if I didn't take some joy in my hobbies, I'm not sure how I'd stay sane.