It seems to be about what everyone else is doing. My dad bought our first H16 because thats what his friend had. It was a great starter boat and all my dad ever wanted. I however after my first ride on a TheMightyHobie18 had to move up. Again a friend had one and let me sail it often. My need for speed and additional challenge brought me to buy a Fox. I now think the F16 is were I would like to go because finding willing crew for the Fox or the 18 when the wind is blowing the way I like it is almost impossible. In my area those that can afford it are on F18s or I-20s, those that can't race 16,17 and 18s. Its about exposure and expense.