In this episode, Ehrlich's (T.J. Miller) shirt says "bitcoin" in ASCII binary (01000010 01101001 01110100 01100011 01101111 01101001 01101110).
The title of this episode 'Sand Hill Shuffle' could be referring to the term 'Kansas City Shuffle' from the movie Lucky Number Slevin. In the movie it means: 'when everyone goes right, you go left' and it this episode it could be referring to everyone offering more and more money to Richard, but he chose to take less.