Best reason is probably that no one is selling the RRR version right now. TCGPlayer is selling them for 20 bucks a pop and probably justifies it by how few of them are in the market at this moment. Worth noting that the SPs are just 6-8 bucks more. You can probably make someone let go of their RRR playset for far less than 20 a piece.
Its either that or there is potential speculation that the Conroe unban will bump the clan half a tier or more up the ladder.
And theres always rumors of new support for kagero.
No, you aren't dreaming. You are burning in this eternal flame.