Just a note, even though this is the second group to cut the GameCube's price on their own accord in Europe, technically the GameCube hasn't even had one official price cut since it's launch in Europe.
It had a 50 Euro price cut before it's 200 Euro (£129) launch, in response to a major 180 Euro price slashing on the XBox (making it's price 300 Euros, or £199).
P.S. The XBox in Europe has also had it's own 50 Euro price cut before last Christmas (making it 250 Euros, or £159), and has been on the leading edge of the newly-reborn idea of giving away free games with the system.