Google Titan security key now available to buy – $50 (Currently US only)

$50 for a U2F-only Google-branded Feitian key? What's their markup on it, 400%?

It could be worth that much if they would guarantee 100% of the components and supply-chain to be secure and verified, but I doubt that's the case (especially after seeing their Pixel 2XL Q&A fiasco). If I remember right from their announcement they mostly just used their own firmware on Feitian's hardware, so hardware backdoors could still be a possibility.