Me too!
Paul, I've been pondering the same question. The interior layout differences are readily apparent, my questions were mostly performance related, except for the 1.5 foot of waterline I believe most of the other performance metrics are in the 310s favor. I will be sailing in the generally light air of San Diego and am concerned about the extra weight of the 320. I also was wondering anyones thoughts on the pricing of the 310. Typically Catalina introduces boats at lower prices and slowly escalates it over the following 2 - 3 years, so does the 310 offer a better buy and less depreciation at the current price levels? I also wondered about Catalinas marketing plan as many of the older and newer models seem to overlap. Does anyone know of plans to discontinue the models without a hundred designation, (ie 30 vs 310)?