I agree with your implied conclusion, although having arrived at it via a different route. To clarify, please see the blog "Where Acoustic & Analog Still Rule the Roost," posted on Planet Analog on 20 September 2013.
In all the rush by some to the SDR receiver technology, it seems that the view of analog receiver technology is being looked at as old and not as good. In the radio astronomy are, we have always stayed with th analog as the truest form of the signal. Your thoughts?