Light wind/race boards cost more for a few good reasons.
1. Shipping, probably 25-30% of the landed cost of a race/light board is shipping and that's if you send it on a slow boat, if you air freight it then it's 50% We can ship 3 twintips in the space that one Kiaola takes up.
2. Manufacture costs. The bigger you go the fewer manufacturing options you have. Few production race boards are made from shaped blown blanks, more likely shaped from multiple sheet layers of foam which has less tooling cost but greater labour cost.
3. Production volume. You are making far fewer of these type boards so every part of the process costs more. You have to pay for downtime, swapping between products, as well actual production time. You also have MOQ, minimum order quantities to fulfil.
4. Amortization. You make fewer and they sit on shelves longer costing you in ageing, that has to be calculated into the price.
And then last but by no means least, you have to stay in business and to do that you need to make a profit. It's just an inescapable fact that niche products cost commensurately more than volume products.