As I watch the 200 on WCSN I got to thinking that their is no such thing as a 200 specialist. Every great 200 runner is also a great 400 or 100 runner. Think Michael Johnson.
Imagine that added the 3000 to the olympics/world championships. Every great 3000 runner is either a miler that moved up or a 5k runner that moved down. Adding the 3k just gives more milers and 5k runners an opportunity to compete, it is not a distance that has its own specialists. Same with the 200.
Agree?