Tell me I'm wrong but it seems to me that people get a little carried away bidding on the bay.
Example: I tried selling a superb Carlton frame on Retrobike for £75, an almost identical one went on the bay (last couple of days) for nearly £200!
If I'm looking for a particular item, frameset, whatever, I'll use a network of contacts to source them (or the less popular jumbles).
At fair - between friends/enthusiasts - prices.
Co-founder of a V-CC section, member South Eastern Road Club and owner of - 2005 Bianchi Reparto Corse (modern), 1985 Raleigh SBDU Pro Super, 1984 Raleigh LU Corsa, 1980 Allin Stan Butler Special, 1978 Ron Cooper, 1975 Bill Philbrook tourer, 2 x very early Roberts (mid/late 1960s), 1966 Raleigh Superbe Roadster, 1964 Allin Stan Butler Special Belgique, 1951 Hobbs of Barbican S/C, 1950 Hobbs of Barbican S/C, 1947 Hetchins Super Special, 1908 Centaur Featherweight. 1988 Specialized Stumpjumper.