I don't see how Harden could already be at his peak card values. The Rockets haven't even had a string of wins yet nor are they a lock for the playoffs and Harden's Exquisite has already risen exponentially since he's now the Alpha Dog in his team and he's producing better than expected. Plus potential All Star selection for him this year might bump up his cards some more.
I like the points stated on Rubio, but what if this is just the start of many more long term injuries. I understand that his values may be at a low because he is injured which makes his cards a good prospect for investment. But his injury scares me, and makes me think he is a riskier investment.