when two or more get involved in a bidding war, the fear of missing out takes over and all sense and logic disappears. The whole market from Northern Soul records is totally skewed, it basically f*cked. Hopefully some of these false inflating prices will take a big hit one day cause many records that should be within reach of many are now completely out of reach.
There is no reason whatsoever or logic why a record that has been less than £1k for many years should all of a sudden triple in value in a short space of time. As said it isn't even rare.