$500 is a lot for an inanimate piece... but damn it looks fantastic. Still, I wouldn’t want to spend that kind of money unless I know that it’s in the same scale as my figures and not just ‘approximate’.
I would also have questions about the production model looking as good, and being durable. I find polystone/resin to be horribly heavy and fragile. I’d be worried about the fragility of those sword tips.