and a question in response to your original question: do you know if the audio on that german promo is identical to one of the well-spread sources (spifc, q101, virgin)? or if not, is it inferior to those?
i don’t remember where i heard this, but somewhere in my memory it says this source isn’t really that good. i might be wrong.
anyway, this could have an influence on what people might want to pay for it. i mean, sure, it is rare as hell, but if it turns out to be sourced from mp3s from a source that runs a bit too fast, for example, then it loses a lot of its magic, in my opinion.