Certifications mean a lot of different things to different people.
As an IT manager and Director I looked for people who were continually growing and pursuing goals. The CISSP, due to experience requirements, surpasses the basic requirements for other security certifications right off the bat. Requiring a sponsor and an ethics clause also raises the bar significantly.
All certificates are nonetheless commodities. They tell me nothing about soft skills, communications, maturity, and character, with some exception, of the individual.
Q. The more important question to me is does having more ISC2 certs mean more than having just the CISSP?
A. I absolutely do not think it does, on the face of it, other than for the continued growth piece. But it also depends if you are trying to hire an analyst, a manager, or an architect.
I would hire an active CISSP in the community, in their professional associations and memberships, in their research and pursuit of knowledge before I would hire and ACRONYM master. (And that's given that I have amassed 74 professional certs)
Certs get you an interview. Experience, professionalism, and character get you hired.