Won't preamps become obsolete?

I'm in the market for a new preamp because I want to upgrade from my Conrad Johnson PV10A. I listen mostly to vinyl but some CD and hopefully SACD some day so I need a preamp to integrate sources. As I look at the used preamp ads on A'gon, however, I notice more and more people saying that they are selling their preamp because they are going directly from a cd player with volume control into an amp. As vinyl wanes (never with me!) will the preamp follow suit or become more oriented towards integrating home theatre digital video and audio sources?