So this is an interesting barometer domain - it has been flipped a few times by a few domainers.
It sold in May 2010 for $1,200 on Sedo auction (£782 at 2010 exchange rate)
It sold again in Feb 2011 for $1,200 on Sedo auction (£753 at 2011 exchange rate)
Sold just recently for £760 on Domainlore.
It is always interesting to see the same name sell multiple times at auction. As a barometer of .co.uk it would suggest the market has been pretty stagnant (actually declined considering inflation) over the past 3 years.