They're both essentially snippets. We've had discussions here of how difficult it is to find consistent, quality 3d model packs. Yeah, you can find great low price or even free models but if your swordsman is realistic and your mage is cartoon and your rogue is something else, it's kind of useless for an actual game because they're not consistent because they're by different artists. You need to spend thousands of dollars to hire a single modeler if you want anything truly usable for just a handful of models.
I'm not claiming code is any better, by the way. Just saying that there's not any magical model source that will get you all your gaming content for free.