So on Wednesday evening this week I heard from someone who had a few to get rid of - a college chemistry department that was shutting down. Agreed a price by phone yesterday morning, and they arrived today - six of them, four small and two large, for a total of £50 inc. postage, about 5% of the usual list prices, and all with recent electrical test certificates.
Now I'm REALLY annoyed that we bought one full price at the end of last week...
I think I'll ask if anyone has a spare mass spectrometer. After all, you never know...