Just to offer a counter view point - I used to collect 1/6th Action Figures (dolls as some might say) and the levels of portrait realism that can be achieved in PVC is truly amazing.
I would like to see this "technology" employed more in 1/4 scale statues - if only for the headsculpts. So far, where it has been used, the effects have been remarkable.
Also, let's not forget, it's not the material that's used that makes a product a "TOY" it's the intended function. There is a huge list of PVC products out there that are clearly not toys. Equally, it's not the use of Polystone that equates to an adult collectable - in fact, for many many years statues were not even made of Polystone