Well Mr M...is simply a master of the sales technique, obviously the buyers determine the final price.
Its what you'd expect.
Every record ever listed by him always has at least a 'must have, quite rare' description.
Again, I'm not knocking him. Its par for the course, just like any salesman.
However when a £100 normally valued record, and by valuation not that rare, fetches double that, indeed he did a good job.
Essentially it just means almost anything and everything can be auctioned it would appear, and the expectation is it will sell for more than a similar set sale.
Ed