These are examples of a Normal full model, the price range of these models depends on the adds but the average price for this is 30$ because of the clothes, the texturing and time spent on the models

These are examples of semi-complex model, more detail on the clothes, more detail on textures, it can also be for full human bodies because of the time spent on making the bodies, the cost for this kind of model would be on average 60$

The most expensive ones, the complex model, in this case they are complex because lots of reasons, they can be body horror, mechs, corpses, they need lots of time, lots of work on the textures, mostly in the body horror sense because of realism, the average price is 100$