Several of my students have gone into naval, marine and air force aviation, and the demonstration teams have had a significant impression on these wonderful young men at an early age.
Since the Blues and the Thunderbirds are booked years in advance, I wouldn't have a problem with fielding even more forms of demonstration teams, such as attack helicopters, etc.
The T-birds flew T-38s for almost a decade. They transitioned to the F-16 after a tragic accident that killed the diamond formation pilots in a training accident.
http://www.check-six.com/Crash_Sites/Thunderbirds-Diamond_Crash.htm