I know there was a lot posted about the unauthorized selling of the demos on eBay, and maybe I am a bit naive in my question here, but has the band considered releasing these demos like they did the album so that no one has a reason to sell them on ebay. While there will always be people who want actual memorabilia, i assume the value of the tapes would go down dramatically if people can get the recordings for free.
Unless there is a financial component for the band, or unreleased songs they dont want people to hear (and both scenarios I could completely understand), maybe posting them for everyone might be an alternative. Just a thought and I'm sure the fans would be super excited to hear the recordings.