Oh dear god, I just priced a gallon of West System (I haven't bought any in a while...not many composite projects going on lately and I usually buy by the gallon). Almost $100 for a gallon of resin...I think I paid about half that the last time I bought it (not but a couple of years ago).
Resin Research Composite Pro is better than West and costs less. Your not officially allowed to complain about epoxy prices until you pay over $200/gallon for the good stuff, like Pro-Set and MGS.
The price of carbon keeps going up, which keeps increasing the costs on foils. I have carbon here that is over $100 per meter, and you need quite a few meters to build a 7 foot long F18 dagger board.
New sail prices aren't exactly going down either, few production boats are coming with U.S built sails so that's another USD<Euro problem.