Dave,

For several hundred dollars to add an audio feature is
rediculous.


As I said in my original post, it's not me making those prices - I was
just commenting on the units that are available on the market. Mind
you, the more expensive units have valuable additional features beyond
audio, IMHO. But I don't really understand why the cheapo-unit
mentioned in the OP doesn't have audio.

--
Thomas Borchert (EDDH)