Figures mainly drive the Poser and D|S side of things, but this industry is much bigger than Poser and D|S. There are a good number of content artists making very healthy livings building content for game engines like Unity, Unreal, etc., who don't even use Poser. And with their real-time rendering, physics, etc, those engines are being used for much more than just game creation these days. Poser is a good starting point though. And it does take time to build up a sizable catalog. It also takes a lot of dedication and self discipline, along with a lot of research and learning new software. You have to treat it like a full time job if you intend on growing it into a full time income. It won't happen over night but it doesn't take long to start making some decent coin. There are a number of store fronts you can sell at too, each with their own rules and payment structure. I've found that several of the stores outside of the Poser and D|S markets pay higher commissions even without being exclusive. However, just because a store pays a higher commission doesn't mean you're going to make more money there. If it's a store that only gets a fraction of the traffic that a store like 'rosity gets, then you're going to make a fraction of the money. And the more professional quality you put into your work, the better it will sell, even if it is an item that has already been done. The market is nowhere near saturated, as every artist has their own unique style that will appeal to someone. So it is no more saturated than any other aspect of the art world is. I don't see many sculptors decide to quit sculpting because there's already so many sculptures out there. Or painters that quit painting because there are already so many paintings out there. Pretty much the same concept. If your work is good and well designed, it will sell, regardless of what it is. It just takes finding the right market for it.