I dont understand why theres absolutely no interest in these units and the UA-5 has taken over in that price range.
I think there are two primary reasons people are going for the UA5 over the DMIC20:
[1] some people prefer the warmer sound of the modded UA5s over the crisper, cleaner, but more digital-sounding DMIC20
[2] The UA5 offers a broader feature set:
[a] up to 4 inputs for multi-mic/matrix mixes
selectable bit depth: 16-bit now, 24-bit future
[c] selectable sample rates
[d] optical out for running direct to MD or JB3
Or maybe these are just the reasons I would go with the UA5 over the DMIC20.
All that said, the DMIC20 is a solid pre/ADC and someone should go buy the ones over in the Yard Sale!!