The reason for the difference in price is that when the credit crunch affected the cost of importing goods, Shoei raised their prices by 30% to counteract this and have only recently reduced prices by 15%.
If you can find any stores that got stock in at the old prices then they may pass this saving onto the customer.
If you find something that you really like - go to the Feridax website :
www.feridax.com then you'll find all the new stock and the RRP - send me a PM and I'll see what sort of discount I can get you!