Originally Posted by carleton

You can only do solo or team time trial events with pursuit bars. You can do any and all events with drop bars...including solo and team time trial events.

Drop bars are most useful for the beginner.

Also, you may not need pista/track bars unless you intend on doing events that require standing starts (Match Sprint, Team Sprint). Most track racing is mass (group) start racing. Most track racers use standard road bars of their choosing.

For example: