You want huge bunches of bikers backed up behind some newbie who's inching along at speeds slow enough to make your head explode? Head to Sturgis.
I was there in the thick of it with my brothers and nephew. We all like to ride fast. After getting frustrated for a half a day in the black hills on awesome roads...poking behind one big group after another (which seemed to be held back by a two-up WInger instead of a Harley) we changed tactics. We just pulled over as a group when we ran up the tailpipes of some slowbie.. We'd take a five minute break, and as soon as a long spell went by with no traffic we'd zip out and have some fun. And normally catch the monster group of slowbies at the next town.
A lot more fun to stop and let the slow guys go ahead than to work your way through a big crowd.
Of course, I passed a lot of people too. I got a speeding ticket in Wyoming to show for it.