I disagree somewhat. SATCOM is expensive and with the economy in shambles, people are looking to cut costs any way they can. The only SATCOM marine traffic are the large commercial vessels, such as oil tankers, cargo ships and cruise ships.
For casual chit-chat, the 6 and 8 meg bands are the most popular. Sometimes 12 megs. 16 megs during the day time hours can be quite busy.
Remember though, most of the 6/8 meg traffic is busy only well-after sunset.
From my QTH, I can hear 5650u which is a popular channel for Aussie or NZL boaters to chat.
I've heard southern accents on the 8 meg channels (probably from Mississippi) and the west coast fisherman tend to hover on the 6 meg channels.
-Nick
Seattle, WA