OID Bulkload VS ldapadd

Dears,

I was wondering, what is the added advantage of OID bulkload tool over ldapadd, when adding a bulk of users.

Based on my testing, I tried both methods to import around 750-770 users, using the same ldif file, and here's the results:

(I used the unix 'time' command to calculate the accurate time for executing both commands)

- Using ldapadd -->                                        real     0m13.387s -- approximately 13.5 seconds.

- Using bulkload --> Check + Generate steps      real     0m6.189s -- approximately 6 seconds.

                                Load                                  real     0m13.319s -- approximately 13.5 seconds.

                              -------------------------------------------------------------------------------------------------------

                                Total                                                                 19.5 seconds

As you may see, the overall time is greater when using bulkload. So now the question is, if bulkload is preferred over ldapadd, then what's the advantages ? (keeping in mind that ldapadd may be executed while OID is on-line, opposing to bulkload where you have to bring OID down and execute it, then bring OID on-line when finished.)