1) For windsurfers, the Neil Pryde foil. At a retail price of $750, the quality and value is impossible to beat.
2) For kite foilers, the G.O.N.G. foil. It's designed by the world famous, windsurf race fin designer to the pros, Jean Jacques Deboichet. With GONG being a direct sales company out of France, the cost in USD delivered postal express is approx $935 for a carbon foil with G-10 wings. The quality and value is hard to beat. http://gongsupshop.com