Cable synergy applicable to digital ICs too?

I don't have much experience with cables, but have done enough reading to learn many people claim synergies when you used the same type of cable for ICs and speaker cables. Nordost claims the same.

I have Purist Audio Museaus analog ICs and speaker cable, and need to buy my first digital (coax) cable. Should I go for a Purist Genesis in pursuit of said synergy, or this doesn't apply to digital and I would be better off looking for more value for the buck?

Thank you!