I've been reading reviews on some of the bigger Catalinas lately - yeah we all look at bigger boats.
What's interesting is some of the articles I've seen in the Australian magazines and in pubs like Blue Water Sailing. They talk about the bigger Catalinas as solid blue water boats, their use as ocean racers and of sailing off for distant shores.
I'm not a blue water guy so I won't pass judgement on the bigger Catalinas blue water abilities; but I wonder if here in the states we've classified them as "coastal boats". So we automatically look for something different when we're ready to head south.