The manufacturers say the difference in price is down to tax laws and business costs.
The Consumers' Association, which looks after shoppers' rights, says UK customers should expect to pay 25% more because of these added costs - but not double the price.
Not such a bargain
Fans wanting to avoid paying higher prices could try buying them from American-based websites.
But you and your parents should make sure that the sites deliver to the UK.
And double-check that, after adding in taxes and delivery costs, you're still getting a good deal!
Do these prices put you off the toys or are you still willing to pay? Let us know by sending in your comment on the right hand side of the page.