Generalising slightly but:

In the UK prices are deemed to include VAT unless otherwise stated. We have one VAT rate across the UK.

VAT rates vary by country in the rest of the EU. With the internal free market, consumers may choose to purchase in a country which has a lower VAT rate without penalty - there may be customer service difficulties in the event of a product failure however.

The US has, if I understand correctly, different rates of taxation on consumer purchases in different states.

The document is for guidance only anyway as anyone may negotiate a different price with their dealer/premium partner depending on circumstances such as trade-ons and other purchases.

In the spirit of Spinaltap, I would like to confirm that I am not involved in the corrupt theft of a global sport.