If the F16 ever starts to take off and good sailors start to get competitive on the boats the cost will skyrocket just like in the A class. It's a development class and that is the way it goes. People started to see that potential for high cost with the 18HT and that pushed many towards the F18 in my opinion. The F18 has much tighter rules that aim at keeping costs down. If the F18 isn't cheap enough for you the racing in the H16 is just as competitive, if not more so.