Robert Comsol wrote:
Why can't they have a little competition? What's disrespectful about it? Every seven years or so one starship will turn out to have accomplished the most. Disappointed it's not the insignia of your ship? Double your efforts and next time your starship may turn out to be the one honored?
And then, at some point, the competition stopped and the familiar Enterprise delta became a standard logo for Starfleet for over 100 years.