Apple Milking Europe with 20% higher prices

Arp has posted some US figures to go with my Apple Macbook Vs Dell Laptop comparison.

Looks better, only a $180 US difference, which translates in to UK pounds as:

• Apple Macbook - £778
• Dell M1330 - £686

I wonder why Apple have such different prices in the states, 20% more expensive! The Dell is only £33 (5%) more than in the UK! Apple milking it's European "fan base" ?