On the work side of things, 7 races can beat a RC and mark/ rescue boats, support staff, etc. However, I've heard PU say it many times and I agree, "This is a NA (World) Champoinship people should be prepared to race at that level."
People are competing to be the BEST H16 sailor in North America, that's a pretty big deal.

Now if it were a div or fleet race, 7 is probably too much.

J