Why price of Tannoy speakers from online retailers in UK is cheaper than in US

I also like the walnut stain on these speakers.  I love to support local dealers but it is not justified for me to pay $4000-$5000 more for the same set of speakers. I agree that there are some risks involved in buying abroad.  If I am not ready to take those risks, I may need to explore other options such as different speakers or buy used ones.  

Regarding VAT, the online retailers do list price with VAT.  But as soon as I select country of destination (USA), It subtracts 20% from the listed price.  Also if I select some other products that they are not allow to sell, they will display "Sorry we are unable to ship this item to your area due to our agreement with the brand." 

Thanks everyone for your input.  Just like the previous user suggested, I need to be patient.  I am in no hurry to buy and will wait for a couple months. If there is no good deal on the horizon for either new or used Tannoy speakers, I may either check overseas or entertain other brands.  

has anyone listened to the GRF 90?  Just wonder how it's compared to the Kensington and Canterbury.  

thanks maxwave