That is discouraging to hear. I've given up on the idea of being able to make any sort of living writing nice, general desktop apps for most any platform. Seems like you have to target a niche with a quality product so they'll have a need and a lack of mediocre competitors. No offense, but FOSS has done considerable collateral damage via the second point. Usually people would rather put up with a crappy UI from 1990 if it's open source than pay $2.

The gamer demographic on Windows is also a bit notorious for piracy.