I am now bidding on the BBC's The Flight of the Condor on her behalf, and with luck should be able to acquire it for her at a fairly reasonable price.
This is her reaction after I'd explained how Ebay works, and then emailed her the link to the auction page above:
"I am amazed and fascinated by the Ebay thing. I realise that I could very easily get whipped up into that whole world. It's just the sort of thing I love. It's a good job I feel I've got too many possessions already and have to avoid my buying instincts."
Who's willing to bet she'll be setting up her own Ebay account before the year is out?
P.S. I know it is strictly 'eBay', but I refuse to patronise words with unnecessarily aberrant capitalisation.