f18 is Nacra's replacement for the Inter 18, rather than any geographical bias. Prices, therefore for used Inters are substancially lower since the introduction of the F18-about £3500 for a good used boat (don't be tempted to pay more-you won't get your money back). Still a good fun boat, but you won't win any races ! However, if you are just using this boat as a fun 'muckabout' boat, be aware that all formula 18 cats are very very wet!